
A light ray is incident on a plane mirror, which after getting reflected strikes another plane mirror, as shown in figure. The angle between the two mirrors is . Find the angle is shown in figure.

Answer
414.3k+ views
Hint : In this question, we will use angle sum property. A triangle containing three angles and three sides and a pair of neighbouring sides bound each vertex. In a Euclidean period, the sum of triangle angles equals degrees. It does not matter if the triangle is obtuse, an acute, or a right triangle; the sum of all angles will be degrees. Thus, the angle sum property says that the sum of the triangle angles is equal to degrees.
Complete step-by-step solution:
The angle between the two mirrors is .
Let
This gives,
In triangle OAB,
Using sum of angle property,
Now, we will apply sum of angle property,
Put in above formula:
Hence, the angle is .
Note: A mirror is a reflective covering that light does not move through but bounces off, producing an image. Mirrors are formed by putting a thin coating of silver nitrate or aluminium following a smooth piece of glass. When we place an object in the face of a mirror, we see the identical object in the mirror.
Complete step-by-step solution:
The angle between the two mirrors is
Let
This gives,

In triangle OAB,
Using sum of angle property,
Now, we will apply sum of angle property,
Put
Hence, the angle
Note: A mirror is a reflective covering that light does not move through but bounces off, producing an image. Mirrors are formed by putting a thin coating of silver nitrate or aluminium following a smooth piece of glass. When we place an object in the face of a mirror, we see the identical object in the mirror.
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