X-LIGHT-INTRO

Image formed by a plane mirror is always ______ and ________.

• real and inverted

• Virtual and erect

• real and erect

• virtual and inverted

A spherical mirror, whose reflecting surface is curved inwards is called a ______

• concave mirror

• convex mirror

• plane mirror

• hollow mirror

3. The focal length of a spherical mirror is equal to _________ of its radius of curvature.

• one-sixth

• one-fourth

• one-third

• half

The angle of incidence and the angle of reflection are always --------------when reflection of light occurs.

• perpendicular

• not equal

• equal

• all the above

The imaginary line drawn through the pole of the spherical mirror is called--------------

• Marginal ray

• Marginal axis

• Principal axis

• Principal focus