Reflection of Light at Plane and Curved Surfaces - Jamb Physics Past Questions and Answers

Question 26:

• 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 27:

• JAMB 1988

To obtain a magnification of 2.5, how far should an object be placed from the pole of a thin converging lens of focal length 10.20m?

A. 0.13m
B. 0.25m
C. 0.28m
D. 0.50m

Question 28:

• JAMB 1988

An object is placed 10cm in front of a concave mirror of focal length 15cm. What is the position and nature of the image formed?

A. 30cm and virtual
B. 6cm and real
C. 6cm and virtual
D. 30cm and real

Question 29:

• JAMB 1988

In the fig above, what is the angle of reflection of the ray of light at mirror M?

A. \( 90^{\circ} \)
B. \( 60^{\circ} \)
C. \( 45^{\circ} \)
D. \( 30^{\circ} \)

Question 30:

• JAMB 1989

The magnification of the image of an object placed in front of a convex mirror is \(\frac{1}{3}\). If the radius of curvature of the mirror is 24cm, what is the distance between its object and its image?

A. 8cm
B. 16cm
C. 24cm
D. 32cm