Light Refraction and Bending Concepts

The video tutorial explains how light refracts through a transparent prism. It describes the process of light bending towards the normal at the first surface and away from the normal at the second surface. The peculiar shape of the prism causes the emergent ray to deviate at an angle, known as the angle of deviation. The tutorial also highlights how the bending of light decreases as the wavelength increases, particularly towards the red spectrum.

What happens to a light ray when it first enters a glass prism from the air?

• It continues in a straight line.

• It bends towards the normal.

• It bends away from the normal.

• It reflects back into the air.

At the second surface of the prism, how does the light ray behave when it passes from glass to air?

• It bends towards the normal.

• It reflects back into the glass.

• It continues in a straight line.

• It bends away from the normal.

What is the angle called that is formed between the emergent ray and the direction of the incident ray?

• Angle of incidence

• Angle of refraction

• Angle of deviation

• Angle of reflection

How does the bending of light change as the wavelength of light increases?

• The bending decreases.

• The bending becomes unpredictable.

• The bending increases.

• The bending remains the same.

Which color of light bends the least when passing through a prism?

• Red

• Yellow

• Green

• Blue