Loading [MathJax]/jax/output/HTML-CSS/jax.js

JAMB Physics Past Questions & Answers - Page 36

176.

The refractive index of a liquid is 1.5. If the velocity of light in vacuum is 3.0 x 10 $^8ms^{-1}$ , the velocity of light in the liquid is

1.5 x 10 $^8ms^{-1}$

2.0 x 10 $^8ms^{-1}$

3.0 x 10 $^8ms^{-1}$

4.5 x 10 $^8ms^{-1}$

View answer & explanation

Correct answer is B

n = $\frac{\text{speed in air}}{\text{speed in glass}}$

1.5 = $\frac{3 \times 10^4}{\text{speed in glass}}$

Speed in glass = 3 x 10 $^8$ m/s / 1.5

= 2 x 10 $^8$ m/s

177.

Consider the three forces acting at O and in equilibrium as shown in the figure. Which of the following equations is/are CORRECT?

I. P $_1$ cos $\theta_1$ = p $_1$ cos $\theta_2$

II. P $_3$ = P $_1$ cos $\theta_4$ + P $_2 cos_2$

III. P $_1 \sin \theta_1 = P_2 \sin \theta_2$

I only

II only

III only

I, II and III only

View answer & explanation

Correct answer is C

No explanation has been provided for this answer.

178.

A hydrometer is an instrument for measuring the

a depth of water of water in a vessel

relative density of a liquid by the method of flotation

relative density of a liquid by finding the apparent loss in weight

relative humidity of the air

View answer & explanation

Correct answer is B

No explanation has been provided for this answer.

179.

A magnetic needle is suspended first at the earth's north magnetic pole and then at a point on the magnetic equator. The respective angles between the needle and the horizontal are

0 $^o$ and 0 $^o$

60 $^o$ and 60 $^o$

90 $^o$ and 90 $^o$

90 $^o$ and 0 $^o$

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

180.

Which of the following is consistent with Charles' law?

III

View answer & explanation

Correct answer is A

This is the correct graph. The graph is volume against temperature where temperature is in Celsius.

JAMB Subjects

Literature in English

Islamic Religious Knowledge

Christian Religious Knowledge

Aptitude Tests

Situational Judgement Questions and Answers

Microsoft Office Questions and Answers

Quantitative Reasoning Questions and Answers

Typing Speed and Accuracy Test

Nigeria General Knowledge Questions and Answers

Data Interpretation Questions and Answers

Numerical Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Logical Reasoning Questions and Answers

Verbal Reasoning Questions and Answers

Puzzles Questions and Answers

Spatial Reasoning Questions and Answers

Personality Test

See all →

View latest jobs in Nigeria today