Post Utme Physics Past Questions and Answers

Question 706:

Which of the following is TRUE of light and sound waves?

A. They both transmit energy
B. They both need a medium for propagation
C. They are both transverse wave
D. Their viscosity in air are equal

Question 707:

The image in a pin-hole camera is ____________

A. Erect and formed by refraction through a lens
B. Virtual and formed by dispersion
C. Erect and gets sharper as the hole becomes larger
D. Inverted and formed by the light from each point traveling in a straight line

Question 708:

When a plane mirror at which a ray of incident is rotated through an angle, the reflected ray will be rotated through ____________

A. 1/2
B. 4
C. 2
D. 3

Question 709:

a trough 12.0cm deep is filled with water of refractive index 4/3.By how much would a coin at the bottom of the trough appear to be displaced when viewed vertically from above the water surface?

A. 3.0cm
B. 6.0cm
C. 9.0cm
D. 16.0cm

Question 710:

In a ray diagram for a thin converging lens, a ray that is not parallel to the optic axis but passes through the optic centre will ____________

A. Pass through un deviated
B. Pass through the centre of curvature after refraction
C. C[sup]o[\sup] emerge parallel to the principal axis
D. Pass through the principal focus after refraction