A ray of light is incident normally on a plane mirror. If the incident ray is kept fixed while the mirror is rotated through an angle of 30°, determine the initial and final angles of reflection respectively

Similar Questions

A rectangular solid block has length 10cm, breadth 5cm and height 2cm. If it lies on a horizontal su...

An ebonite rod rubbed with fur attracts a glass rod rubbed with silk because ...

Which of the following statements is not a reason for using soft iron in making the core of a transf...

In which of the following device is the expansion of solid not required? I. Simple pendulum ...

Which of the following instruments can be used to compare the relative magnitudes of charges on two ...

The direction of the path taken by light is called ...

I. Its velocity is constant II. No work is done on the body III. It has constant acceleration dire...

The speed of sound in air is directly proportional to ...

Which of the following is/are characteristics of sound? I. Pitch II. Loudness III. Quality IV....

Given that the gravitational constant is G. Newton's universal law of gravitation states that the fo...