Light Refraction and Wavelength Effects

The video tutorial explains the dispersion of white light into its constituent colors when passed through a prism. It covers the concept of refraction, the speed of light in different media, and how the index of refraction affects light bending. Using a vehicle analogy, the video illustrates how light bends when entering and exiting a medium. It also explains why shorter wavelengths bend more than longer ones, leading to the separation of colors in a spectrum.

What happens to white light when it passes through a prism?

• It remains unchanged.

• It is dispersed into a spectrum of colors.

• It becomes invisible.

• It is absorbed by the prism.

What is the speed of light in a vacuum?

• 3 x 10^4 m/s

• 3 x 10^6 m/s

• 3 x 10^2 m/s

• 3 x 10^8 m/s

What does the index of refraction describe?

• The color of light

• The speed of light in a vacuum

• The bending of light in a medium

• The reduction in speed of light in a medium

When light enters a denser medium at an angle, how does it bend?

• It does not bend

• Towards the normal

• Away from the normal

• In a circular path

What happens to light when it exits a denser medium?

• It bends towards the normal

• It stops moving

• It bends away from the normal

• It continues in a straight line

Why do different wavelengths of light bend at different angles?

• Because they have different colors

• Because they have different speeds

• Because they have different frequencies

• Because they have different temperatures

Which color of light bends more when passing through a prism?

• Yellow

• Blue

• Green

• Red

What is the relationship between wavelength and frequency?

• Longer wavelength means higher frequency

• Shorter wavelength means lower frequency

• Longer wavelength means lower frequency

• Wavelength and frequency are unrelated

Why does blue light bend more than red light?

• Because it is slower

• Because it is brighter

• Because it has a higher frequency

• Because it is hotter

What analogy is used to explain the bending of light?

• A car on a highway

• A bird flying in the sky

• A wheel entering a shallow stream

• A ball rolling down a hill