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When a parall...

Question

When a parallel beam of light remains parallel after striking at the surface. This phenomenon is known as:

A

Regular reflection

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B

No reflection

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C

Diffused reflection

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Solution

The correct option is A Regular reflection
When a parallel beam of light rays falls on a smooth surface, it gets reflected. After reflection, the reflected rays will be parallel to each other.
This type of reflection is called regular reflection.

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If true then type 1, if false then type 0

9 kW

light source emits light of frequency

10^{15} Hz

. A parallel beam of this light falls normally on a surface. If the surface completely absorbs all the incident photons, the force exerted by the light beam on the surface is

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