Advertisements
Advertisements
Question
What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
Advertisements
Solution
If the reflected ray is at an angle of 90° to the incident ray, then the angle of incidence is 45°. According to the law of reflection, the angle of incidence is equal to the angle of reflection.
Therefore, the angle of incidence and the angle of reflection both are `90^@/2` = 45°
APPEARS IN
RELATED QUESTIONS
A person 1 m in front of a plane mirror seems to be ______ m away from his image.
If you touch your ______ ear with your right hand in front of a plane mirror, it will be seen in the mirror that your right ear is touched with your ______.
Image formed by a plane mirror is ______.
Boojho stands at A just on the side of a plane mirror as shown in figure. Can he see himself in the mirror? Also can he see the image of objects situated at P, Q and R?
State the two laws of reflection of light.
The laws of reflection hold good for
Why do we need a shiny surface for reflection?
How should a ray of light be incident on a rectangular glass slab so that it comes out from the opposite side of the slab without being displaced?
Higher-Order Thinking Skills:
Are the laws of reflection true in the case of irregular reflection?
