Physics Practice Test – Reflection of Light Waves

An object is placed in front of two plane mirror inclined at 60° to each other. Determine the number of images formed.

A. 2      B. 3      C. 5      D. 7

A ray of light is incident normally on a plane mirror. If the incident ray is kept fixed while the mirror is rotated through an angle of 30°. determine the initial and final angles of reflection respectively.

A. 0° and 60°       B. 90° and 30°      C. 0° and 30°     D. 90° and 60°

Convex spherical mirrors are preferred to plane mirrors as driving mirrors because ______

A. the image produced is upright and clearly visible.
B. it provides a wider field of view.
C. the image produced is erect and diminished
D. the image produced is not laterally inverted.

When an object is placed at the principal focus of a concave mirror, the location of the image formed is ____

A. between principal focus and pole.
B. between principal focus and centre of curvature.
C. at infinity.
D. at centre of curvature.

Which of the following optical instruments does not depend on the use of plane mirrors?

A. Kaleidoscope     B. Simple microscope     C. Sextant    D. Simple periscope