Why there are two parallel plane mirrors in a barber shop?

Two parallel plane mirrors form infinite images.

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The customer can see the image of back of his head with the help of this setup.

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The setup focusses light and helps the barber to cut the hair better.

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None of the above.

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Solution

The correct option is B The customer can see the image of back of his head with the help of this setup.
Let man be facing mirror 1 in front and mirror 2 in back. Infinite images of both front and back are formed in both the mirrors. Hence, he can see the back of his head in the mirror.

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Similar questions

Q. A man goes to a barber shop with two mirrors placed parallel and facing each other. He observes himself in one of the mirrors. How many images will he see?

Q. A plane mirror of length

90 cm

is mounted on the wall in a barber shop. What is the maximum height a man can have to see his own image completely in the mirror ?

Two plane mirrors are arranged parallel and facing each other with some separation. How many images are formed for a point object kept in between them ? Show the formation of images with the help of a ray diagram.

Q. Can a real image be formed with the help of a plane mirror?

Q. Assertion : A virtual image can not be obtained on a screen.
Reason : Two plane mirrors placed parallel to each other, will form infinite virtual images for a real object placed between the mirrors.
Choose the correct option:

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Why there are two parallel plane mirrors in a barber shop?

The correct option is B The customer can see the image of back of his head with the help of this setup.Let man be facing mirror 1 in front and mirror 2 in back. Infinite images of both front and back are formed in both the mirrors. Hence, he can see the back of his head in the mirror.

The correct option is B The customer can see the image of back of his head with the help of this setup.
Let man be facing mirror 1 in front and mirror 2 in back. Infinite images of both front and back are formed in both the mirrors. Hence, he can see the back of his head in the mirror.