Question

3.A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in Fig. 16.3. 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? *
1 point

Answer 1

Answer:

at A point .

Explanation:

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Answer 2

Explanation:

Given A small hole P is made in a piece of cardboard. The hole is illuminated by a torch as shown in Fig. 16.3. 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?

• So here the law of reflection holds good. So the second law of reflection states that when a ray of light reflects on a plane surface the angle of incidence is equal to the angle of reflection . Both the angles are calculated  with respect to the normal of the mirror. So we need to place the eye on the point A and the hole can be seen.
• So it will be POINT A

Reference link will be

https://brainly.in/question/13569553

https://brainly.in/question/4780256