Question

A plane mirror is inclined at angle  with x-axis. The point P is on the

mirror. An incident ray MP, after reflection at point P of the mirror,

passes through point A as shown in the figure. Read the passage

carefully and answer the following questions

1. The value of  is
2. Now the mirror is rotated is such a way so that the incident ray MP, after reflection at point P of

the mirror, pass through the origin, then
3. Which of the following optical instruments works on the principle of reflection of light from plane

mirror?

(A) magnifying glass (B) Telescope

(C) Periscope (D) Microscope​

Answer 1

Step-by-step explanation:

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