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

Question 11:

• JAMB 1981

Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light

A. I, ii and iii
B. I, ii and iv only
C. I and ii only
D. I and ii only
E. All four statements

Question 12:

• JAMB 1981

An object placed on the principle axis of a convex lens of focal length 10m produces a real image of double magnification. The image distance from the lens is

A. 30cm
B. 25cm
C. 20cm
D. 15cm
E. 10cm

Question 13:

• JAMB 1982

An object 15cm high is 30cm from pin-hole camera. If the height of the image formed at the back of the camera is 10cm, the image distance is

A. 20cm
B. 45cm
C. 54cm
D. 63cm
E. 70cm

Question 14:

• JAMB 1982

in the image above, an incident ray XY makes an angle of 15\( ^{\circ} \) with a fixed line AY which is normal to surface of a plane mirror if the mirroe is turned as indicated by the arrow through \( 40^{\circ} \) what angle will the reflected ray make with AY

A. \( 25^{\circ} \)
B. \( 40^{\circ} \)
C. \( 15^{\circ} \)
D. \( 55^{\circ} \)
E. \( 95^{\circ} \)

Question 15:

• JAMB 1982

the arrow represents an object in front of a convex mirror whose focal points are X and Y. The image formed is

A. Between X and P
B. Between P and Y
C. Between Y and Z
D. Outside W
E. Outside Z