Question

if two plane mirror are kept at an angle 120 degree calculate the number if imaged formed​
pls guys fast ans

Answer 1

Answer:

60

Explanation:

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Answer 2

Answer:

How many images are formed between 2 mirrors at an angle of 120?

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The number of images formed when two mirrors are placed at an angle theta to each other is given by:

n = ( 360 / theta ) - 1

So, here, we have the mirrors placed perpendicular to each other. So, theta = 90 degree

=> n = no. of images formed

=> n = ( 360 /120 ) - 1

=> n = 3 - 1

=> n = 2

So, a total of two images will be formed.

This video might help:

You can also try for different angles.

Similarly, when the 2 mirrors are placed parallel to each other, theta = 0 degree

So, number of images formed = infinite

Also, when the two mirrors are placed side by side, theta = 180 degree

=> n = ( 360 / 180 ) - 1

=> n= 2 - 1

=> n = 1

And hence, only one image is formed as a whole

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