Physics Optics Test Online MCQs

1. A tall man of height 6 feet, want to see his full image. The required minimum length of the mirror will be:

2. A man runs towards mirror with a speed of 5 m/s. What is the speed of his image?

3. Evidence of the wave nature of light cannot be obtained from:

4. How many images will be formed if two mirrors are fitted on adjacent walls and one mirror on ceiling?

5. The height of a man is 6 m. To see his full image the size of mirror is approximately:

6. Huygen’s wave theory of light cannot explain:

7. A plane mirror produces a magnification of:

8. If an object is placed unsymmetrically between 2 plane mirrors, inclined at an angle of the 60°, then the total number of images formed is:

9. A man runs towards a mirror at a rate of 6 m/s. If we assume the mirror to be at rest, his image will have a velocity:

10. Light behave as:

11. The rectilinear propagation of light in a medium is due to:

12. A beam of light rays falls on a plane mirror and form a real image, so the incident rays are:

13. Light Propagates rectilinearly because of its:

14. Which of the following phenomena is not explained by Huygen’s construction of wavefront?

15. A man moves towards a mirror with velocity 4 m/s. With what velocity its image move towards him?

16. Frequency of visible light is of the order of:

17. Two mirrors are kept at 60° to each other and a body is placed at middle. The total number of images formed is:

18. The theory associated with secondary wavelets is:

19. According to Huygen’s principle light is a form of:

20. To get three images of a single object, one should have two plane mirrors at an angle of:

21. Newton proposed his corpuscular theory of light on the basis of:

22. A thick mirror produces a number of images of an object. Which of the images is the brightest?

23. A clock shows hours with the help of numbers. If it shows 8-20 in the mirror placed in front of it, then the real time is:

24. A light ray is incident normally on a plane mirror. The angle of reflection will be:

25. Ray optics is valid when the characteristics dimensions are: