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

Question 96:

• JAMB 2016

An object is placed 15cm in front of a plane mirror. If the mirror is moved further 5cm away from the object and the image is

A. 80cm
B. 40cm
C. 50cm
D. 70cm

Question 97:

• JAMB 2016

What is the angular magnification of a telescope having objective and eyepiece lenses of a focal lengths 30cm and 3cm respectively?

A. 60
B. 10
C. 30
D. 90

Question 98:

• JAMB 2016

A boy in a barber's shop sits between two parallel mirrors. The number of images observed by him will be

A. Infinite
B. Ten
C. Eight
D. Forty

Question 99:

• JAMB 2016

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

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

Question 100:

• JAMB 2017

Determine the focal length of a thin converging lens if the power is 5.0 dioptres

A. 0.1 m
B. 0.2 m
C. 2.0 m
D. 2.5 m