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 72𝑜72 o . 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 incident towards a plane mirror at an angle of 63𝑜63 o with the mirror surface of the plane mirror. What will be the angle of reflection?
A ray of light incidents on a plane mirror at an angle of 30°. The deviation produced in the ray isSelect an answerA30°B60°C90°D120°
Light from a laser strikes a plane mirror at an angle of 38𝑜38 o to the normal. If the laser is moved so that the angle of incidence increases by 13𝑜13 o , what is the new angle of reflection in degrees?
A ray of light is incident normally on one of the faces of a prism of apex angle 30° and refractive index 2√. The angle of deviation of the ray is
You position two plane mirrors at right angles to one another. A light ray strikes one mirror at an angle of 60o60 o to the normal. It then reflects toward the second mirror. What its angle of reflection of the second mirror?
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.