Question

A ray of light can be reflected ___ times by two plane mirrors placed parallel and facing each other A) 2 B) 4 C) 8 D) inginite

Answer 1

A ray of light can be reflected infinite times by two plane mirrors which faces each other.

Explanation:

• When two plane mirrors are placed near to each other and if they are in parallel position with their faces facing each other, then the light will be reflected infinite number of times.
• This kind of reflection because the light travels fast with a short distance of reflection and the angle of incidence and reflection of light will be 60 degree.

To know more:

1) What is reflection.........

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2) Define reflection and refraction of light

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Answer 2

Answer:

A ray of light can be reflected INFINITE times by two plane mirrors placed parallel and facing each other

Explanation:

As we know that total number of reflection between two mirrors which are inclined at an angle is given by

$N = \frac{360}{\theta}$

here we know that

$\theta$ = angle between two mirror

here when two mirror are parallel to each other

then we have

$\theta = 0$

so we have

N = infinite

#Learn

Topic : total number of reflection

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