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

Question 36:

• JAMB 1991

When a plane mirror at which a ray is incident is rotated through an angle \( \theta \), the reflected ray will be rotated through

A. \(\frac{1}{2}\)\(\theta\)
B. \(\theta\)
C. 2\(\theta\)
D. 3\(\theta\)

Question 37:

• JAMB 1991

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

A. Pass through undeviated
B. Pass through the center of curvature after refraction
C. Emerge parallel to the principal axis
D. Pass through the principal focus after refraction

Question 38:

• JAMB 1991

Which of the following correctly, describes the image of an object, 4cm from a diverging lens of focal length 12cm?

A. The image is virtual, 3cm in front of the lens
B. The image is real, 6cm behind the lens
C. The image is virtual, 6cm in front of the lens
D. The image is real, 3cm in front the lens

Question 39:

• JAMB 1992

Which of the following properties make the convex mirror useful as a driving mirror? i. the image is real. ii. the image is erect. iii. it has a wide field of view. iv. the image is magnified.

A. I, ii, and iv
B. I, ii, iii
C. Ii and iii
D. I and iii

Question 40:

• JAMB 1992

When an object is placed very close to the pole of a concave mirror, the virtual image obtained is

A. Diminished and upright
B. Diminished and inverted
C. Enlarged and inverted
D. Enlarged and upright