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

Question 6:

• JAMB 1979

A concave lens of focal length 20cm form an image 1/2 the size of the object. The object distance is

A. 100cm
B. \( \frac{100}{q} \)
C. 60cm
D. \( \frac{60}{7} \)
E. None of the above

Question 7:

• JAMB 1979

The diagram shows lens arrangement in

A. A Compound Microscope
B. Astronomical telescope
C. Binocular
D. Periscope
E. Projection lantern

Question 8:

• JAMB 1980

Which of the following statements is NOT true of the image in a plane mirror? The image is

A. The same size as the object
B. Laterally inverted
C. Virtual
D. Magnified
E. The same distance behind the mirror as the object is in front

Question 9:

• JAMB 1980

If the magnification of a virtual image formed of an object 10cm from a convex lens is 3, then the focal length of the lens is

A. 10cm
B. 15cm
C. 16cm
D. 19cm
E. 20cm

Question 10:

• JAMB 1981

Which of the following does NOT describe the image formed by a plane mirror?

A. Erect
B. Laterally inverted
C. Same distance from mirror as object
D. Magnified
E. Virtual