Question 5

A small hole P is made in a piece of cardboard. The hole is illuminated by a touch as shown in the figure. The pencil of light coming out of the hole falls on a mirror.

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

Open in App

Solution

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.

Suggest Corrections

Similar questions

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?

Q. A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in Fig. as A, B, C and D. In which of the shown figure, the light will be visible to eye?

A tiny mirror M is fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of the eye with respect to the position of the bulb is shown in the figure as A, B, C and D. In which position mirror will be visible?