A ray of light is reflected on a plane mirror at an angle of 72𝑜72 o . what is the angle of deviation?
Question
A ray of light is reflected on a plane mirror at an angle of 72°.
What is the angle of deviation?
Solution
The angle of deviation in a plane mirror is calculated using the formula:
Deviation = 180° - 2i
where i is the angle of incidence. In a plane mirror, the angle of incidence is equal to the angle of reflection. So, in this case, the angle of incidence is 72°.
Substituting the given value into the formula, we get:
Deviation = 180° - 2(72°) Deviation = 180° - 144° Deviation = 36°
So, the angle of deviation of the ray of light reflected on the plane mirror at an angle of 72° is 36°.
Similar Questions
A ray of light is reflected on a plane mirror at an angle of 72𝑜72 o . what is the angle of deviation?
A light ray strikes a mirror at an angle of 56o to the normal. Find the angle between the incident ray and the reflected ray.
A ray of light is incidenting normally on a plane mirror. The angle of reflection will beSelect an answerA0°B90°CWill not be reflectedDNone of the above
What is the angle between a reflected ray and normal?90 degreesAngle of reflectionAngle of incidence180 degrees
What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.