Refraction of light means that light can travel in a curved line.

• True

• False

When light travels from air to glass at an angle, it bends towards the normal.

• True

• False

If a light ray passes through the air-glass boundary at right angle, it does not change direction.

• True

• False

The refractive index of water is smaller than that of air.

• True

• False

The legs of a boy appear shorter in water is a phenomenon caused by refraction of light.

• True

• False

When refraction occurs, reflection must not occur.

• True

• False

When refraction occurs, the refracted ray is dimmer than the incident ray.

• True

• False

When a light ray travels from glass to water at an angle with the normal, refraction does not occur.

• True

• False

When a light ray travels from one medium to another, it always bends towards the normal.

• True

• False

The refractive index of air is about 1.

• True

• False