Formation Of Images By Plane Concave And Convex Mirrors And Ray Diagrams - Physics Jamb Past Questions and Answers

Question 1 :

• JAMB 1978

an object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens. The size of the image is

A. 0.5cm
B. 1.5cm
C. 3cm
D. 2.5m
E. 2cm

Question 2 :

• JAMB 1978

An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit distance from each mirror, the number of images formed is

A. 1
B. 2
C. 3
D. 4
E. 5

Question 3 :

• JAMB 1979

A man standing between two parallel mirrors in a barber's shop will see the following number of his own image

A. Eight
B. Two
C. Four
D. One
E. Infinite

Question 4 :

• 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 5 :

• 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