A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole falls on a mirror. Torch and point 'A' are equidistant from 'C'.

At which point should the eye be placed, so that the hole can be seen?

$D$

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$A$

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$B$

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$C$

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Solution

The correct option is B
$A$

Law of reflection states, the angle of incidence should be equal to the angle of reflection.

The eye should be placed at A because the hole can be seen only when the angle of incidence is equal to the angle of reflection.

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A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole falls on a mirror. Torch and point 'A' are equidistant from 'C'. At which point should the eye be placed, so that the hole can be seen?

The correct option is B A Law of reflection states, the angle of incidence should be equal to the angle of reflection. The eye should be placed at A because the hole can be seen only when the angle of incidence is equal to the angle of reflection.

A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in the figure. The pencil of light coming out of the hole falls on a mirror. Torch and point 'A' are equidistant from 'C'.

At which point should the eye be placed, so that the hole can be seen?

The correct option is B
$A$

Law of reflection states, the angle of incidence should be equal to the angle of reflection.

The eye should be placed at A because the hole can be seen only when the angle of incidence is equal to the angle of reflection.