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Physics Past Questions and Answers

Jamb Physics Questions

Question 41:

The graphite rods surrounding the uranium fuel rods in a nuclear reactor, are used to

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A Absorb the neutrons and hence halt the nuclear process
B Create the neutrons and hence slow up the nuclear process
C Slowdown the neutrons and hence slow up the nuclear process
D Speed up the neutrons and hence speed up the nuclear process

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Question 42:

The following are the scores of ten students in a test of 20 marks: 15, 16, 17, 13, 16, 8, 5, 16, 19, 17. What is the modal?

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A 13
B 15
C 16
D 19

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Question 43:

Find the standard deviation of the following data -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

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A 2
B 3
C âˆš10
D âˆš11

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Question 44:

For what value of 6 are the forces in the diagram above in equilib4ruim

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A \( 15^{\circ} \)
B \( 30^{\circ} \)
C \( 45^{\circ} \)
D \( 60^{\circ} \)

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Question 45:

The fig above shows a block of mass m sliding down a rough inclined plane QP at angle \( \theta \) . The forces acting on the block along QP are

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A Mg sinÎ¸ and the normal reaction
B Mg sinθ and the force of friction
C Mg sinÎ¸ and the normal reaction
D Mg cosÎ¸ and the normal reaction

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