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Refraction & Reflection of Light...

Refraction & Reflection of Light

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Assertion : The rainbow is an example of the dispersion of sunlight by the water drops in the atmosphere. Reason : No reflection or refraction of light is involved in the formation of rainbow.

A pencil appears to be bent when partially immersed in a beaker of water due to ....................(reflection/refraction) of light.

State laws of reflection of light.

Assertion :- When monochromatic light is incident on a surface separating two medium, the reflected and refracted light has same frequency as incident light. Reason :- Reflection and refraction arise through interaction of incident light with atoms of matter and atoms act as oscillator which takes up frequency of incident light and undergoes forced oscillation and scatters light of same frequency.

A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.

In Figure, a ray of light A incident from air suffers partial reflection and refraction at the boundary of water. (a) Complete the diagram showing (i) the reflected ray B and (ii) the refracted ray C. (b) How are the angles of incidence i and refraction r related ?

State the laws of refraction of light. State at least three examples of refraction of light.

Assertion : The frequencies of incident, reflected and refracted beam of monochromatic light are same. Reason : The incident, reflected and refracted rays are coplanar.

The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index n),

The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index n),