JAMB UTME - Physics - 2006
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Question 2 Report
[e = 1.6 x 10-19c; h = 6.6 x 10-13js]
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element.(arsenic and antimony)
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Question 5 Report
In the diagram above, the pressure of the gas is
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= 76 + 10
86 cm Hg
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Question 7 Report
I. The number of neutrons released exceeds the number that caused the fission.
II. There is loss of mass.
III. Energy is produced.
IV. Smaller nuclei merge to form larger nuclei
Which of the statement above are correct about nuclear fission?
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Question 9 Report
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the first over tone occurs when the length of the tube l = (3)/4λ.
λ = (4)/3 l = (4)/3 x (33)/T = 44 cm
Question 10 Report
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Slope = V/1/P = P x V
thus the unit of the slope will be;
| P = | Force |
| Area |
= Nm-2, = V = M3 = NM.
The unit NM (Newton - Meter) is the practical unit of work, which is the product of force (N) and Displacement (M).
Note: It should be noted that the practical unit of work is Newton-Meter, whereas its S.I unit is Joules, just as energy.
Question 11 Report
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Force F1 = MLT-2; Vel, V, LT-1
From the above, => P = F x V
i.e, ML2T-3 = MLT-2 x LT-1
ML2T-3
=> 80,000 = F x 32
| ? F = | 80,000 |
| 32 |
= 2500N
= 2.50 x 103N
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Question 13 Report
[g = 10 ms-2]
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Question 14 Report
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=> (U2Sin2θ) / g = (3 x U2sin2θ) / 2g
| ∴sin2θ = | 3sin2θ |
| 2 |
| => 2sinθcosθ = | 3sin2θ |
| 2 |
∴ 4sinθcosθ = 3sin2θ
=> 4cosθ = 3sinθ
∴ sinθ/cosθ = 4/3; => tanθ = 4/3 = 1.3333
θ = tan-1 (1.3333)
= 53o
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Question 21 Report
I. Work done by load is always less than the work done by effort.
II. All machines are made of levers, pulleys, screws and gear wheels.
III. A fishing rod is a machine.
Iv. Effort is always larger than load.
which of statements above about machines are true?
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Question 23 Report
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comparing the above with the standard wave equation:
Y = A sin π ((2vt)/λ - (2x)/λ)
=> the phase difference x/4 = 2x/λ
∴ 1/4 = 2/λ => λ = 8cm
∴ 2/8x = 45o
∴ x/4 = 0.7071 => x = 4 x 0.7071
= 2.82
= 3cm
Question 24 Report
[Refraction index of water (4)/3]
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Question 25 Report
The diagram above represents the stress-strain graph for a typical metal rod. What does the X represent?
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Question 27 Report
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= 3.703 x 10-4 gc-1
∴ M = Itz = 1.5 x 1 x 60 x 60 x 3.703 x 10-4
= 1.99962g.
=2.0g
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Question 29 Report
The frequency of the wave in the diagram above is
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=> f = 1/T
And from the diagram, period T = 4s
∴ frequency, f = 1/T = 1/4 = 0.25 Hz
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Question 35 Report
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19.2 =(P)/103; ∴P = 19.2 X 103
But Vol. = (Mass)/density = (2.4)/19.2 x 103
= 1.25 x 10-4 M3
Question 36 Report
A radioactive substance has a half life of 20 days. What fraction of the original radioactive nuclei will remain after 80 days?
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Question 38 Report
A conductor has a diameter of 1.00mm and length of 2.00m. If the resistance of the material is 0.1Ω, the resistivity is
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Question 44 Report
The thermos flask is designed to?
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Question 49 Report
[specific heat capacity of water = 4.2 x 103 jkg-1 k-1]
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Question 50 Report
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