Jamb Physics 1987 Past Questions and Answers

Question 26:

• JAMB 1987

Which of the following statements supports the assumption that light travels in straight lines?

A. Light can be diffracted
B. A source of light produces distinct shadows of opaque objects
C. A source of light produces interference patterns on a suitably placed screen
D. Light can be reflected

Question 27:

• JAMB 1987

When the length I of a piece of wire under constant tension is varied, the relationship of the frequency of the vibration f\(\alpha\)/ is

A. F\(\alpha\)/
B. F\(\alpha \frac{1}{I^2}\)
C. F \(\alpha\sqrt I\)
D. F\(\alpha \frac{1}{1}\)

Question 28:

• JAMB 1987

If an object is placed in front of two mirrors inclined at 90^o, how many images will be formed?

A. Five
B. Four
C. Three
D. Two

Question 29:

• JAMB 1987

An object 3.0cm high is placed 60.0cm from a converging lens whose focal length is 20.0cm. Calculate the size of the image formed

A. 0.5cm
B. 1.5cm
C. 2.0cm
D. 6.0cm

Question 30:

• JAMB 1987

A pool of water appears to be 1.0m deep when viewed vertically from above. If the refractive index of water is 1.33, what is the actual depth of the pool?

A. 0.750m
B. 1.013m
C. 1.330m
D. 13.3000m