Light Test - 11...

In which mirror is the image formed always virtual?

a. Plane mirror
b. Convex mirror
c. Concave mirror

When an object is kept between the focus and the pole, the image formed by a concave mirror is _________.

For maximum utility, the bulb of a car's headlight should be kept

What are the characteristics of the image formed at the retina?

When a mirror is rotated through an angle of 30 degrees, with what angle would the reflected ray turn?

In a plane mirror, if an object moves by a distance 'x', then what is the distance moved by the image with respect to the object?

In a concave mirror, all the rays parallel to the principal axis converge at which point?

A ray passing through the centre of curvature (C), after hitting the concave mirror, ___________ .

A concave mirror is used everywhere except in a

Choose the most appropriate option:

In a convex lens, if the object is at an infinity, the image formed is

a. obtained at focus
b. virtual
c. highly diminished

When a convex lens is used as a magnifying glass, the object looks magnified if ________.

Which colour is absent in the spectrum formed by a cut diamond?

Where is the image formed, if the object is kept anywhere between the infinity and 2F1 of a concave lens?

The outer curved surface of a spoon acts as a ___________.

Which of the following equation gives the correct relation between the focus (F) and the centre of curvature (C)?