1. Which of-the following is not a property of light?

2. Two points P and q are situated at the same distance from a source of light but on opposite sides. The plane difference between the light waves passing through P and q will be:

3. The phase difference between the electric and the magnetic field vectors in electromagnetic waves is

4. A ray of light travelling in air is incident of a glass slab. The ray gets partly reflected and partly refracted. The phase difference between the reflected and the refracted waves is :

5. Which of the following cannot be polarised?

6. Light year is the unit of:

7. If a mirror is approaching you at a speed of 10 ms^1, the speed with which your image approach you is:

8. The refractive indices (R.I.) of glass and water with respect to air are 3/2 and 4/3 respectively. The R.I. of glass w.r. to w ater is:

9. The angle of minimum deviation for an equilateral glass prism is 30°. Refractive index of the prism is:

10. A beam of light is incident at 60° to a plane surface. The reflected and refracted rays are perpendicular to each other. What is the R.I. of the surface: