Two plane mirrors M1 and M2 are inclined to each other at 70degree. a ...
Explanation:
When a ray of light is incident on the plane mirror M1, it gets reflected according to the law of reflection. The angle of incidence is equal to the angle of reflection, and the reflected ray is in the same plane as the incident ray and the normal to the mirror.
Angle of Reflection:
The angle of reflection can be calculated using the formula:
Angle of Reflection = Angle of Incidence
θR = θI
Angle between two Mirrors:
As the two mirrors M1 and M2 are inclined to each other at an angle of 70 degrees, the angle between the incident ray and the reflected ray is also 70 degrees.
Path of the Reflected Ray:
The reflected ray from M1 falls on M2 and gets reflected according to the law of reflection. The angle of incidence on M2 is equal to the angle of reflection from M1.
As the reflected ray from M2 is parallel to the incident ray on M1, the angle of incidence on M2 is also 70 degrees.
Therefore, the angle of reflection from M2 is also 70 degrees.
Conclusion:
Hence, the reflected ray from M2 is parallel to the incident ray on M1. The angle between the two mirrors and the angle of incidence on M1 are crucial in determining the path of the reflected ray.