JAMB UTME - Physics - 1978

Ajụjụ 1 Ripọtì

The visible part of light consists of the following colours

red, indigo, infra-red, violet, yellow, green and blue

red, green, blue, violet, indigo, orange and yellow Azịza ziri ezi

blue, ultra-violet, infra-red, red, yellow, indigo, violet,green and orange

infra-red and ultra-violet

red, orange, yellow, green, blue, indigo and infra-red

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Light Energy (JAMB)

Light Energy

Lee Azịza

Ajụjụ 2 Ripọtì

The heat from the sun reaches the earth by the process

insulation

precipitation

conduction

convection

radiation Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Heat Energy (WAEC)

Heat Energy

Lee Azịza

Ajụjụ 3 Ripọtì

The density of a solid is defined as the

mass of the solid compared to the mass of an equal volume of water

amount of water displaced when a unit mass of thesolid is immersed in it

weight per unit volume of the solid

volume per unit mass of the solid

mass per unit volume of the solid Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Characteristics Of Sound Waves (JAMB)

Gụọ akwụkwọ nkuzi na Pressure (JAMB)

Gụọ akwụkwọ nkuzi na Measurements And Units (JAMB)

Characteristics Of Sound Waves

Pressure

Measurements And Units

Lee Azịza

Ajụjụ 4 Ripọtì

The latent heat of fusion of ice is 80cal g^-1. How much heat is required to change 10g of ice at Q^oC into water at the same temperature?

80 cal

10 cal

8 cal

800 cal Azịza ziri ezi

400 cal

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Quantity Of Heat (JAMB)

Quantity Of Heat

Lee Azịza

Ajụjụ 5 Ripọtì

An electric charge could be transmitted through

wood, rubber and stone

paper, clay and plastic

glass, acid and cloth

The human body, water and metals Azịza ziri ezi

all of the above

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Electrostatics

Lee Azịza

Ajụjụ 6 Ripọtì

A machine gun with a mass of 5kg fires a 50g bullet at speed of 100ms^-1. The recoil speed of the machine gun is

0.5 msec^-1

1.5 msec^-1

1 msec^-1 Azịza ziri ezi

2 msec^-1

4 msec^-1

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Newton’s Laws Of Motion (WAEC)

Newton’s Laws Of Motion

Lee Azịza

Ajụjụ 7 Ripọtì

The statements below were made by some students describing what happened during the determination of the melting point of solids.
i. the temperature of the solid was solid until melting started
ii. the temperature of the solid rose until melting started
iii. during melting, the temperature was rising
iv. during melting, the temperature was constant
v. the temperature continued to rise after all the solid had melted
vi. the temperature stopped rising after all the solid had melted. Which of the following gives correct statements in the right order?

ii, iv, and v Azịza ziri ezi

ii, iii and vi

i, iii and vi

i, iii and v

i, iv and v

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Friction (JAMB)

Gụọ akwụkwọ nkuzi na Quantity Of Heat (JAMB)

Gụọ akwụkwọ nkuzi na Temperature And Its Measurement (JAMB)

Friction

Quantity Of Heat

Temperature And Its Measurement

Lee Azịza

Ajụjụ 8 Ripọtì

The electric supply from Kainji Dam is transmitted at high voltages of the order hundreds of kilovolts but is converted to domestic use of about 220 volts by

commutators

transistors

valves and diodes

rectifiers

transformers Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Current Electricity (JAMB)

Gụọ akwụkwọ nkuzi na Simple A.C Circuits (JAMB)

Current Electricity

Simple A.C Circuits

Lee Azịza

Ajụjụ 9 Ripọtì

The net charge on the atom is zero because

the electrons and the protons that are charged are in the nucleus

the total charge on the electrons is equal to the total charge on the protons Azịza ziri ezi

the neutrons from a shield around the charged protons

the number of electrons in an atom is half the number of protons

A and B above

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Structure Of The Atom (Nigeria Only) (WAEC)

Structure Of The Atom (Nigeria Only)

Lee Azịza

Ajụjụ 10 Ripọtì

The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is

\(\frac{mv^2}{r}\) Azịza ziri ezi

\(\frac{mr^2}{v}\)

\(\frac{mr}{v}\)

\(\frac{mv}{r^2}\)

\(\frac{mv}{r}\)

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Equilibrium Of Forces (WAEC)

Equilibrium Of Forces

Lee Azịza

Ajụjụ 11 Ripọtì

A magnet is moved through a coil of wire. The e.m.f. produced in the wire depends on

the number of turns in the coil

the strength of the magnet

the speed at which the magnet is moved

all of the above Azịza ziri ezi

none of the above

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Magnets And Magnetic Fields (JAMB)

Magnets And Magnetic Fields

Lee Azịza

Ajụjụ 12 Ripọtì

A few grains of table salt were put in a cup of water, kept at constant temperature and left undisturbed. Eventually all the water tasted salty. The action is due to

convection

osmosis

capillarity

diffusion Azịza ziri ezi

conductivity

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Scalars And Vectors (JAMB)

Gụọ akwụkwọ nkuzi na Temperature And Its Measurement (JAMB)

Scalars And Vectors

Temperature And Its Measurement

Lee Azịza

Ajụjụ 13 Ripọtì

In a D.C. circuit, a 10 microfarad (mf) capacitor is placed in series with a 10 0hm resistor. The total resistance of the combination is

10 ohms

1 ohms

zero

20 ohms

infinite Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Capacitors (JAMB)

Gụọ akwụkwọ nkuzi na Simple A.C Circuits (JAMB)

Capacitors

Simple A.C Circuits

Lee Azịza

Ajụjụ 14 Ripọtì

The boys are communicating with each other by stretching a string passing through a hole punched in the bottom of each of two tin cans. The physical principle employed is that sound travels

mainly through air

fainter in stretched string

faster through gases than in solids and liquids

with greater ease through a string than in air Azịza ziri ezi

none of the above is correct

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Sound Waves (WAEC)

Gụọ akwụkwọ nkuzi na Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Gụọ akwụkwọ nkuzi na Propagation Of Sound Waves (JAMB)

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Sound Waves

Refraction Of Light Through Plane And Curved Surfaces

Propagation Of Sound Waves

Electrostatics

Lee Azịza

Ajụjụ 15 Ripọtì

An air force jet flying with a speed of 335ms-1 went past an anti-aircraft gun. How far is the aircraft 5s later when the gun was fired?

838m

3350m

670m

1675m Azịza ziri ezi

67m

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Motion (JAMB)

Motion

Lee Azịza

Ajụjụ 16 Ripọtì

On an a.c generator, which of the following does not apply?

field magnet

commutator Azịza ziri ezi

armature

slip rings

carbon brushes

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Capacitors (JAMB)

Gụọ akwụkwọ nkuzi na Simple A.C. Circuits (WAEC)

Gụọ akwụkwọ nkuzi na Simple A.C Circuits (JAMB)

Capacitors

Simple A.C. Circuits

Simple A.C Circuits

Lee Azịza

Ajụjụ 17 Ripọtì

Three 5 ohms resistors connected in parallel have a potential difference of 60v. applied across the combination. The current in each resistor is

36A

12A Azịza ziri ezi

24A

10A

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Capacitors (JAMB)

Gụọ akwụkwọ nkuzi na Current Electricity (JAMB)

Gụọ akwụkwọ nkuzi na Concepts Of Matter (WAEC)

Capacitors

Current Electricity

Concepts Of Matter

Lee Azịza

Ajụjụ 18 Ripọtì

a guitar string is 75cm long. the wavelength of its fundamental note is

75cm

150cm Azịza ziri ezi

37.5cm

112cm

50cm

Akọwa Nkọwa

Lee Azịza

Ajụjụ 19 Ripọtì

The equivalent capacitance for the circuit drawn above is

18µf

4µf Azịza ziri ezi

2µf

12µf

13µf

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Capacitors (JAMB)

Capacitors

Lee Azịza

Ajụjụ 20 Ripọtì

In order to convert a galvanometer into an ammeter

a low resistance shunt is connected in parallel Azịza ziri ezi

a low resistance shunt is connected in series

a medium resistance shunt is connected in series

a high resistance shunt is connected in parallel

a high resistance shunt is connected in series

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Current Electricity (JAMB)

Gụọ akwụkwọ nkuzi na Properties Of Waves: Reflection, Refraction, Diffraction (WAEC)

Gụọ akwụkwọ nkuzi na Motion (JAMB)

Current Electricity

Properties Of Waves: Reflection, Refraction, Diffraction

Motion

Lee Azịza

Ajụjụ 21 Ripọtì

A man walks 1km due east and then 1km due north. His displacement is

1 km N15^oE

1 km N30^oE

\(\sqrt 2\)km N 45^oE Azịza ziri ezi

\(\sqrt 2\)km N 60^oE

2km N 75^oE

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Scalars And Vectors (JAMB)

Gụọ akwụkwọ nkuzi na Position, Distance And Displacement (WAEC)

Scalars And Vectors

Position, Distance And Displacement

Lee Azịza

Ajụjụ 22 Ripọtì

A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain?

6 x 10^-2 Azịza ziri ezi

6 x 10^-3

0.6

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Elasticity (JAMB)

Elasticity

Lee Azịza

Ajụjụ 23 Ripọtì

The amount of heat required to raise the temperature of a body is

Thermal energy Azịza ziri ezi

thermal conduction

heat loss

specific heat capacity

thermal capacity

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Temperature And Its Measurement (JAMB)

Temperature And Its Measurement

Lee Azịza

Ajụjụ 24 Ripọtì

If NEPA charges 5k per kWhr, what is the cost of operating for 24 hours a lamp required 1A on a 200v line?

24k Azịza ziri ezi

55k

40k

26k

32k

Akọwa Nkọwa

Lee Azịza

Ajụjụ 25 Ripọtì

Of the following which is different from the other?

x-rays

gamma-rays

cathode rays Azịza ziri ezi

ultra violet rays

infrared rays

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum (WAEC)

Gụọ akwụkwọ nkuzi na Properties Of Waves: Reflection, Refraction, Diffraction (WAEC)

Gụọ akwụkwọ nkuzi na Structure Of The Atom (Nigeria Only) (WAEC)

Gụọ akwụkwọ nkuzi na Electromagnetic Field (Part 2) (WAEC)

Gụọ akwụkwọ nkuzi na Types Of Waves (WAEC)

Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum

Properties Of Waves: Reflection, Refraction, Diffraction

Structure Of The Atom (Nigeria Only)

Electromagnetic Field (Part 2)

Types Of Waves

Lee Azịza

Ajụjụ 26 Ripọtì

In The Diagram, what is the value of W?

10N Azịza ziri ezi

15N

20N

30N

Akọwa Nkọwa

Lee Azịza

Ajụjụ 27 Ripọtì

The angular dispersion of a prism depends on

the index of refraction only Azịza ziri ezi

the angle of incidence as well as the index of refraction

the angle of incidence only

the thickness of the prism

the prism angle

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Electrostatics

Lee Azịza

Ajụjụ 28 Ripọtì

The factional force between two bodies

exists only when there is relative motion or tendency for motion

acts so as to oppose the motion

depends on the normal reaction between the two surfaces

is relatively independent of the area in contact

has all of these characteristics Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Friction (JAMB)

Gụọ akwụkwọ nkuzi na Pressure (JAMB)

Friction

Pressure

Lee Azịza

Ajụjụ 29 Ripọtì

To determine the weight of an object you could

use a beam balance

use a spring balance

find the force necessary

use none of these methods

use any of these methods Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Time (WAEC)

Gụọ akwụkwọ nkuzi na Measurements And Units (JAMB)

Time

Measurements And Units

Lee Azịza

Ajụjụ 30 Ripọtì

Two resistors R1 and R2 are connected in parallel, R2 being greater than R1. The combined resistance is

less than R₁ Azịza ziri ezi

greater than R₂

the sum of R₁ and R₂

the difference of R₂ and R₁

greater thanR₁ but less than R₂

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Scalars And Vectors (JAMB)

Gụọ akwụkwọ nkuzi na Equilibrium Of Forces (WAEC)

Scalars And Vectors

Equilibrium Of Forces

Lee Azịza

Ajụjụ 31 Ripọtì

Every house supplied with electricity is provided with a box of fuses so that

the consumption of electricity can be recorded

people residing in the house will not have an electric shock if they touch a live wire

the total current drawn from the mains can be limited Azịza ziri ezi

the voltage supply can be stabilized

it serves as a standby supply when there is a power failure

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Electrostatics

Lee Azịza

Ajụjụ 32 Ripọtì

A temperature 20^oC is the same as

36^oF

60^oF Azịza ziri ezi

11.1^oF

43.1^oF

25^oF

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Temperature And Its Measurement (JAMB)

Temperature And Its Measurement

Lee Azịza

Ajụjụ 33 Ripọtì

mercury is a better barometric fluid than water because i. it needs no colouring ii. its density is many times greater than that of water iii. it does not wet glass iv. it has a high vapour pressure v. it has a high boiling point. which of the above statements are true?

i and ii only

i, ii and iii only Azịza ziri ezi

iii and iv only

iv and v only

iii, iv and v only

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Position, Distance And Displacement (WAEC)

Gụọ akwụkwọ nkuzi na Vapours (JAMB)

Gụọ akwụkwọ nkuzi na Pressure (JAMB)

Position, Distance And Displacement

Vapours

Pressure

Lee Azịza

Ajụjụ 34 Ripọtì

Two lamps are rated 40W and 220V each are connected in series. The total power dissipated in both lamps is

10W

20W

40W

80W Azịza ziri ezi

None of the above

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Current Electricity (JAMB)

Gụọ akwụkwọ nkuzi na Simple A.C Circuits (JAMB)

Current Electricity

Simple A.C Circuits

Lee Azịza

Ajụjụ 35 Ripọtì

an object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is

0.5cm

1.5cm

3cm

2.5m

2cm Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Gụọ akwụkwọ nkuzi na Properties Of Waves: Reflection, Refraction, Diffraction (WAEC)

Gụọ akwụkwọ nkuzi na Electromagnetic Field (Part 2) (WAEC)

Refraction Of Light Through Plane And Curved Surfaces

Properties Of Waves: Reflection, Refraction, Diffraction

Electromagnetic Field (Part 2)

Lee Azịza

Ajụjụ 36 Ripọtì

For the correction of myopic defects in the human eye we require

a convex lens

a concave lens Azịza ziri ezi

a combination of concave and convex lenses

a prism

a concave mirror

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Structure Of The Atom (Nigeria Only) (WAEC)

Structure Of The Atom (Nigeria Only)

Lee Azịza

Ajụjụ 37 Ripọtì

A palm fruit dropped to the ground from the top of a tree 45m tall. How long does it take to reach the ground? (g = 10ms^-2)

4.5s

7.5s

3s Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Gravitational Field (JAMB)

Gravitational Field

Lee Azịza

Ajụjụ 38 Ripọtì

The following are some units i. Ns ii. Mm iii. Nm^-2 iv. J^oK^-1. What are the units of latent heat?

iii

iv Azịza ziri ezi

Akọwa Nkọwa

Lee Azịza

Ajụjụ 39 Ripọtì

Why is it impossible for the lines of force of an electric field to cross one another?

like charges repel each other

a charged particle is deflected by an eletric field

like charges are arranged on the same line of force

a positively charged particle can travel in only one direction at any time Azịza ziri ezi

none of these is correct

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Electrostatics

Lee Azịza

Ajụjụ 40 Ripọtì

A string is sustaining a stationary wave when

the frequency of the wave is not proportional to the wavelength of the wave

the amplitude of vibration is always zero

two equal waves are travelling in opposite directions Azịza ziri ezi

the waves are longitudinal

the frequency is directly proportional to the length of the string

Akọwa Nkọwa

Lee Azịza

Ajụjụ 41 Ripọtì

A solid suspended by a piece of string is completely immersed in water. On attempting to lift the solid out of the water, the string breaks when the solid is partly out of the water. This is because

the tension in the string decreases as the solid is lifted

the mass of the solid has increased

the solid apparently weighs less when completely immersed in water than when partially immersed Azịza ziri ezi

part of the solid still in water is exerting more force on the string

the solid is no longer in equilibrium with water

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Gravitational Field (WAEC)

Gụọ akwụkwọ nkuzi na Speed And Velocity (WAEC)

Gravitational Field

Speed And Velocity

Lee Azịza

Ajụjụ 42 Ripọtì

The internationally agreed system of units(SI) for physical measurements are

Ib, ft, sec

g, m, sec

kg, m, sec Azịza ziri ezi

cm, g, sec

kg, cm, sec

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Fundamental And Derived Quantities And Units (WAEC)

Fundamental And Derived Quantities And Units

Lee Azịza

Ajụjụ 43 Ripọtì

An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit distance from each mirror, the number of images formed is

3 Azịza ziri ezi

Akọwa Nkọwa

Lee Azịza

Ajụjụ 44 Ripọtì

A potential difference of 6v is used to produce a current of 5A for 200s through a heating coil. The heat produced is

4800 cal

6000 cal

2400J

240k cal

6000J Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Current Electricity (JAMB)

Gụọ akwụkwọ nkuzi na Electrical Energy And Power (JAMB)

Current Electricity

Electrical Energy And Power

Lee Azịza

Ajụjụ 45 Ripọtì

A gas at pressure PN-m^-2 and temperature 27^oC is heated to 77^oC at constant volume. The new pressure is

0.85 PN-m^-2

0.86 PN-m^-2

1.16 PN-m^-2 Azịza ziri ezi

1.18 PN-m^-2

2.85 PN-m^-2

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Quantity Of Heat (JAMB)

Quantity Of Heat

Lee Azịza

Ajụjụ 46 Ripọtì

An ice cube floats in a glass of water filled to the brim. What happens when the ice melts?

The water level remains the same Azịza ziri ezi

there is a drop in the level of water in the glass due to condensation on its outside

the water in the glass overflows

the level of water drops because melted ice occupies less volume

none of the above is correct

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Friction (JAMB)

Gụọ akwụkwọ nkuzi na Fluid At Rest (WAEC)

Friction

Fluid At Rest

Lee Azịza

Ajụjụ 47 Ripọtì

A herdsman yelling out to fellow herdsman heard his voice reflected by cliff 4s later. What is the velocity of sound in air if the cliff is 680m away?

170ms^-1

136ms^-1

340ms^-1 Azịza ziri ezi

680ms^-1

510ms^-1

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Electrostatics (JAMB)

Electrostatics

Lee Azịza

Ajụjụ 48 Ripọtì

The angular dispersion of a prism depends on

the index of refraction only Azịza ziri ezi

the angle of incidence as well as the index of refraction

the angle of incidence only

the thickness of the prism

the prism angle

Akọwa Nkọwa

Lee Azịza

Ajụjụ 49 Ripọtì

An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit from each mirror. The number of images formed is

3 Azịza ziri ezi

Akọwa Nkọwa

Lee Azịza

Ajụjụ 50 Ripọtì

Which of the following is true for the image formed by a convex mirror? i. the image is always virtual ii. the image is always erect iii. the image lies between pole and focus iv. the image is never magnified v. the focus length is negative

i only

i and ii only

ii and iii only

i, ii, iii and iv only

all five Azịza ziri ezi

Akọwa Nkọwa

Gụọ akwụkwọ nkuzi na Refraction Of Light Through Plane And Curved Surfaces (JAMB)

Refraction Of Light Through Plane And Curved Surfaces

Lee Azịza






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