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

Question 16:

• JAMB 1982

Two mirrors of the same length are arranged as shown above, a ray of light NO strikes the system at O and emerges along PQ. The emergent ray has been deviated through

A. 220 degrees
B. 200 degrees
C. 210 degrees
D. 180 degrees
E. 230 degrees

Question 17:

• JAMB 1983

PQ is a thin rod on a horizontal table, RS is a plane mirror inclined at \( 45^{\circ}C\) to the horizontal as shown above. The image of PQ as seen in the mirror by the eye T is

A. Horizontal
B. Parallel to the mirror
C. At infinity
D. Vertical
E. Highly magnified

Question 18:

• JAMB 1984

For a concave mirror to form a teal diminished image, the object must be placed

A. Behind the mirror
B. Between the mirror and its focus
C. Between the focus and the centre of curvature
D. At the centre of curvature
E. At a distance greater than the radius of curvature

Question 19:

• JAMB 1985

An object is placed 15cm in front of a concave mirror of radius 40cm. The image formed

A. Virtual and 60cm behind the mirror
B. Real and 60cm behind the mirror
C. Virtual and at infinity
D. Real and at infinity
E. Virtual and 40cm from the mirror

Question 20:

• JAMB 1985

A convex mirror is used as a driving mirror because i. its image is erect. ii. it has a large field of view. iii. it has a long focal length. Identify the CORRECT statement(s)

A. I andiii only
B. I and ii only
C. Ii and iii only
D. I, ii, and iii only
E. I only