NECO SSCE - Physics - 2009 (Objective)

Frage 1 Bericht

Which of the following pairs of phenomena helps in the resolution of the wave-particle paradox of matter?

Compton effect and thermionic emission

Electron diffraction and refraction

emission and absorption of light Richtige Antwort

Interference and polarization

Reflection and photoelectric effect

Antwortdetails

Lies die Unterrichtsnotiz zu Wave-particle Paradox (WAEC)

Wave-particle Paradox

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Frage 2 Bericht

An observer heard the sound of thunder 5.8s after the lightning flash was seen. How far was he from the source? [Speed of sound in air = 330ms^-1]

957m Richtige Antwort

1914m

3828m

8700m

17400m

Antwortdetails

Lies die Unterrichtsnotiz zu Motion (JAMB)

Motion

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Frage 3 Bericht

Determine the value of x from the nuclear reaction below,

\(^{222}_{86}Rn\) → \(^{x}_{88}Ra\) + 2β + energy

220

222 Richtige Antwort

224

226

228

Antwortdetails

Lies die Unterrichtsnotiz zu Structure Of The Atom (Nigeria Only) (WAEC)

Structure Of The Atom (Nigeria Only)

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Frage 4 Bericht

Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is

conical

cubical

cylindrical Richtige Antwort

parabolic

spherical

Antwortdetails

Lies die Unterrichtsnotiz zu Electrostatics (JAMB)

Electrostatics

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Frage 5 Bericht

Which of the following statements is correct about volatile liquids? They have

low boiling point Richtige Antwort

Low evaporating rate

high conductivity

high density

high viscosity

Antwortdetails

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Frage 6 Bericht

A stone is thrown with a speed of 10ms at an angle of 30° to the horizontal, Calculate its time of flight, (g = 10ms²)

0.5s

1.0s Richtige Antwort

1.7s

2.0s

3.4s

Antwortdetails

Lies die Unterrichtsnotiz zu Motion (JAMB)

Motion

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Frage 7 Bericht

A projectile attains its maximum height when the angle of projection is

30°

45° Richtige Antwort

60°

75°

90°

Antwortdetails

Lies die Unterrichtsnotiz zu Scalars And Vectors (WAEC)

Lies die Unterrichtsnotiz zu Motion (JAMB)

Scalars And Vectors

Motion

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Frage 8 Bericht

In which of the following fields is repulsion NOT experienced?

Electrical only

Gravitational only Richtige Antwort

Magnetic only

Magnetic and electrical

Magnetic and gravitational

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Lies die Unterrichtsnotiz zu Electric Field (WAEC)

Lies die Unterrichtsnotiz zu Gravitational Field (JAMB)

Electric Field

Gravitational Field

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Frage 9 Bericht

Two images Y and X are formed by a plane mirror and a convex mirror respectively. Which of the following is correct about their characteristics?

Both are inverted

The magnification of Y is greater than one while that of X is one

The magnification of Y is one while that of X is less than one Richtige Antwort

Y is inverted while X is erect

Y is real while X is virtual.

Antwortdetails

Lies die Unterrichtsnotiz zu Simple A.C. Circuits (WAEC)

Lies die Unterrichtsnotiz zu Reflection Of Light At Plane And Curved Surfaces (JAMB)

Simple A.C. Circuits

Reflection Of Light At Plane And Curved Surfaces

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Frage 10 Bericht

Which of the following substances undergoes sublimation?

Ether

Ice

Iodine Richtige Antwort

Naphthalene

Turpentine

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Lies die Unterrichtsnotiz zu Change Of State (JAMB)

Lies die Unterrichtsnotiz zu Vapours (JAMB)

Change Of State

Vapours

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Frage 11 Bericht

An object of mass 2kg moves for 5s with a uniform velocity of 10ms. What is the magnitude of its acceleration in ms^-2?

zero Richtige Antwort

2.5

12.5

100

Antwortdetails

Lies die Unterrichtsnotiz zu Newton’s Laws Of Motion (WAEC)

Newton’s Laws Of Motion

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Frage 12 Bericht

The term torque means

the equilibrant of two concurrent forces

the moment of a force about an ads Richtige Antwort

the resultant of several forces acting on a body in equilibrium

two coplanar forces at right angle to each other

two equal and opposite forces whose lines of action do not coincide

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Lies die Unterrichtsnotiz zu Scalars And Vectors (JAMB)

Lies die Unterrichtsnotiz zu Equilibrium Of Forces (WAEC)

Scalars And Vectors

Equilibrium Of Forces

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Frage 13 Bericht

A plane progressive wave is represented by the equation y = 0.2sin (200πt - 0.5.x) where x and y are measured in cm and t in s. What is the frequency of the wave?

0.5Hz

4.0Hz

10.0Hz

100.0Hz Richtige Antwort

200.0Hz

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Lies die Unterrichtsnotiz zu Elementary Modern Physics (JAMB)

Elementary Modern Physics

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Frage 14 Bericht

An effort P applied at one end of a crowbar just overcomes the resistance W at the lid of a tin. The mechanical advantage of the crowbar is expressed as

W + P

P - W

\(\frac{w}{p}\) Richtige Antwort

\(\frac{p}{w}\)

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Lies die Unterrichtsnotiz zu Simple Machines (JAMB)

Simple Machines

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Frage 15 Bericht

The phenomenon of photoelectric effect is used in the following EXCEPT

automatic doors

bugler alarm

electric fire alarm

sound production from film tracks Richtige Antwort

television cameras

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Lies die Unterrichtsnotiz zu Structure Of The Atom (Nigeria Only) (WAEC)

Lies die Unterrichtsnotiz zu Electromagnetic Field (Part 2) (WAEC)

Structure Of The Atom (Nigeria Only)

Electromagnetic Field (Part 2)

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Frage 16 Bericht

Which of the following statements about the pressure in a liquid is NOT correct? It

acts in all direction

changes with the material of the container Richtige Antwort

is the same at all points in the same horizontal plane

varies with the density of the liquid

varies with the depth of the liquid

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Lies die Unterrichtsnotiz zu Pressure (JAMB)

Lies die Unterrichtsnotiz zu Liquids At Rest (JAMB)

Pressure

Liquids At Rest

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Frage 17 Bericht

The electric potential at a distance d from a point charge q in air of permittivity eo is expressed as?

q² ÷ 4πe_od

q² ÷ 4πe_o

q ÷ 4πe_od²

q ÷ 4πe_od Richtige Antwort

q ÷ 4πe_o²d

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Lies die Unterrichtsnotiz zu Electrostatics (JAMB)

Electrostatics

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Frage 18 Bericht

The work done in extending a spring by 40 mm is 1.52J. Calculate the elastic constant of the spring.

38.8 Nm^-1

60.8 Nm^-1

190.0 Nm^-1

1900.0 Nm^-1 Richtige Antwort

3800.0 Nm^-1

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Lies die Unterrichtsnotiz zu Elasticity (JAMB)

Elasticity

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Frage 19 Bericht

Calculate the work done in charging a capacitor of capacitance 20µF through a potential difference of 1000V.

0.02 J

0.10 J

0.20 J

1.00 J

10.00 J Richtige Antwort

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Lies die Unterrichtsnotiz zu Capacitors (JAMB)

Capacitors

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Frage 20 Bericht

A body executing simple harmonic motion has an angular speed of 2π radians. Its period of oscillation is (π 3.14).

0.05s

1.00s Richtige Antwort

2.00s

3.14s

6.28s

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Lies die Unterrichtsnotiz zu Simple Harmonic Motion (WAEC)

Simple Harmonic Motion

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Frage 21 Bericht

A sound wave from a ship is received 8.4s later. What is the depth of the sea? [Speed of sound in water 1500ms^-1]

0.179km

0.357km

3.150km

6.300km Richtige Antwort

12.600km

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Lies die Unterrichtsnotiz zu Current Electricity (JAMB)

Current Electricity

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Frage 22 Bericht

An immersion heater is rated 1500W. How long does it take the heater to raise the temperature of 1 kg of water by 30°C? (Assume heat lost to the surrounding is negligible, Specific heat capacity of water 4200Jkg^-1K^-1)

84s Richtige Antwort

112s

130s

168s

280s

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Lies die Unterrichtsnotiz zu Heat Energy (WAEC)

Heat Energy

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Frage 23 Bericht

A body accelerating will have a constant speed if it is

falling from a height

in equilibrium

moving in a circular path Richtige Antwort

moving in a straight line

oscillating

Antwortdetails

Lies die Unterrichtsnotiz zu Scalars And Vectors (WAEC)

Lies die Unterrichtsnotiz zu Rectilinear Acceleration (WAEC)

Scalars And Vectors

Rectilinear Acceleration

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Frage 24 Bericht

Inertia is the property of a body which makes the body to

accelerate

be reluctant to move when at rest Richtige Antwort

experience friction when moving

move randomly

retard

Antwortdetails

Lies die Unterrichtsnotiz zu Newton’s Laws Of Motion (WAEC)

Lies die Unterrichtsnotiz zu Motion (JAMB)

Newton’s Laws Of Motion

Motion

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Frage 25 Bericht

A transformer has an efficiency of 92.5%. the ratio number of turns in the primary coil to that in the secondary coil is 128 : 45. If the current passing through the secondary coil is 9.0A, calculate the current passing through the primary-coil.

2.93A

3.16A

3.42A Richtige Antwort

25.60A

27.68A

Antwortdetails

Lies die Unterrichtsnotiz zu Simple A.C. Circuits (WAEC)

Lies die Unterrichtsnotiz zu Elementary Modern Physics (JAMB)

Simple A.C. Circuits

Elementary Modern Physics

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Frage 26 Bericht

Which of the following phenomena is responsible for the spherical shape of soap bubbles?

Adhesion

Capillarity

Cohesion

Osmosis

Surface tension Richtige Antwort

Antwortdetails

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Frage 27 Bericht

Which of the following statements is correct about light and sound waves? Both

are longitudinal waves

are transverse waves

have the same velocity in air

need a medium for propagation

transmit energy Richtige Antwort

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Lies die Unterrichtsnotiz zu Description Property Of Fields (WAEC)

Lies die Unterrichtsnotiz zu Sound Waves (WAEC)

Description Property Of Fields

Sound Waves

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Frage 28 Bericht

Arrange the following in the order of their increasing frequency.

I. Visible light
II. Gamma rays
III. Radio waves
IV. Infra-red radiation
V. Ultra-violet radiation

I, II, III, IV, V

II, III, IV, V, I

III, IV, V, I, II

IV, III, I. V, II

III, IV, I,V, II Richtige Antwort

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Lies die Unterrichtsnotiz zu Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum (WAEC)

Electromagnetic Waves: Types Of Radiation In Electromagnetic Spectrum

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Frage 29 Bericht

The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth?

1.92N

2.88N

6.72N

8.00N

12.00N Richtige Antwort

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Lies die Unterrichtsnotiz zu Gravitational Field (JAMB)

Gravitational Field

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Frage 30 Bericht

Calculate the heat energy lost when 10g of boiling water changes to ice at 0°C. [Specific latent heat of ice 336Jg^-1 . Specific heat capacity of water 4.2Jg^-1 K^-1]

840J

3360J

3420J

4200J

7560J Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Heat Energy (WAEC)

Heat Energy

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Frage 31 Bericht

Which of the following statements about water is NOT correct?

Pure water freezes at 0°C under normal pressure

The volume of a given mass of water at 0° is less than its volume at 4°C Richtige Antwort

Water boils at a definite temperature

Water evaporates at all temperatures

Water has its maximum density at 4°C

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Lies die Unterrichtsnotiz zu Change Of State (JAMB)

Change Of State

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Frage 32 Bericht

Which of the following pairs of musical instruments produce sound due to the vibration of air column?

Bell and piano

Guitar and flute

Trumpet and drum

Trumpet and flute Richtige Antwort

Violin and organ

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Lies die Unterrichtsnotiz zu Current Electricity (JAMB)

Lies die Unterrichtsnotiz zu Sound Waves (WAEC)

Current Electricity

Sound Waves

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Frage 33 Bericht

The space between the two walls of a vacuum flask is completely evacuated to reduce heat loss by

condensation

conduction

convection Richtige Antwort

evaporation

radiation

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Lies die Unterrichtsnotiz zu Heat Transfer (JAMB)

Heat Transfer

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Frage 34 Bericht

In the electrical method of making a magnet, the polar the magnet formed depends on the

amount of current passed

direction of the current Richtige Antwort

nature of the material used

orientation of the magnetic material in space

size of the magnetic material

Antwortdetails

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Frage 35 Bericht

Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then

A and B are equal

A is greater than B

the angle between A and B is 0°

the angle between A and B is 90°

the angle between A and B is 180° Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Scalars And Vectors (JAMB)

Lies die Unterrichtsnotiz zu Equilibrium Of Forces (WAEC)

Scalars And Vectors

Equilibrium Of Forces

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Frage 36 Bericht

A series RLC circuit is said to resonate, when

capacitive reactance is zero

conductance is maximum

current is minimum

impedance is minimum Richtige Antwort

inductive reactance is zero

Antwortdetails

Lies die Unterrichtsnotiz zu Capacitors (JAMB)

Lies die Unterrichtsnotiz zu Scalars And Vectors (JAMB)

Lies die Unterrichtsnotiz zu Properties Of Waves: Reflection, Refraction, Diffraction (WAEC)

Lies die Unterrichtsnotiz zu Simple A.C Circuits (JAMB)

Lies die Unterrichtsnotiz zu Introductory Electronics (JAMB)

Capacitors

Scalars And Vectors

Properties Of Waves: Reflection, Refraction, Diffraction

Simple A.C Circuits

Introductory Electronics

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Frage 37 Bericht

Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane?

Random and rotational

Rotational and oscillatory

Rotational only

Translations only

Translational and rotational Richtige Antwort

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Lies die Unterrichtsnotiz zu Scalars And Vectors (JAMB)

Lies die Unterrichtsnotiz zu Motion (JAMB)

Scalars And Vectors

Motion

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Frage 38 Bericht

Which of the following cells does not require a dipolar for effective and efficient delivery of current?

Daniel cell

Dry Leclanche cell

Nickel-iron accumulator Richtige Antwort

Voltaic cell

Wet Leclanche cell

Antwortdetails

Lies die Unterrichtsnotiz zu Current Electricity (JAMB)

Lies die Unterrichtsnotiz zu Electric Cells (JAMB)

Current Electricity

Electric Cells

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Frage 39 Bericht

Two forces of magnitude 8N and 4N act at right angle to each other. The angle between the resultant and the 8N force is

23.9°

26.6° Richtige Antwort

29.5°

60.0°

63.4°

Antwortdetails

Lies die Unterrichtsnotiz zu Equilibrium Of Forces (WAEC)

Equilibrium Of Forces

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Frage 40 Bericht

A ball of mass 0.1kg moving with velocity of 20ms-1 is hit by a force which acts on it for 0.02s. If the ball moves off in the opposite direction with a velocity of 25ms-1 , calculate the magnitude of the force.

25N Richtige Antwort

100N

125N

225N

250N

Antwortdetails

Lies die Unterrichtsnotiz zu Newton’s Laws Of Motion (WAEC)

Lies die Unterrichtsnotiz zu Work, Energy And Power (WAEC)

Newton’s Laws Of Motion

Work, Energy And Power

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Frage 41 Bericht

When a resistor of resistance R is connected across a.c. the terminal p.d. of the cell is reduced to three-quart its e.m.f. The cell’s internal resistance in terms of R is

\(\frac{R}{4}\) Richtige Antwort

\(\frac{R}{3}\)

\(\frac{R}{2}\)

2\(\frac{R}{3}\)

Antwortdetails

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Frage 42 Bericht

The equation P^xV^yT^z = Constant is Charles’ law if

x = 0, y = 1 and z = -1 Richtige Antwort

x = 0, y = -1 and z = 1

x = 1, y = 1 and z = 0

x = 1, y = 1 and z = -1