Geometrical Optics – Online MCQs – Physics 10th

1. The defect in which the image is formed beyond the retina is called:

2. In the normal human eye, the image is formed:

3. A ray of light bends away from the normal when it enters an optically

4. Power of a lens is defined as the reciprocal of its:

5. In the photograph enlarger, the object is placed:

6. The angle of reflection and the angle of reflection are:

7. To illuminate the inaccessible places in the tooth, dentists use:

8. When the angle of incidence becomes larger than the critical angle, then

9. Magnification = ?

10. magnifying glass is also called:

11. One of the angles of a right-angled prism is

12. The quantity which does not change during refraction is:

13. The entire light is reflected into the same denser medium, which is called total:

14. The inner part ‘core’\ of an optical fibre is coated with another material called “cladding” which has:

15. Which statement is correct?

16. To view dim stars, we use:

17. An optical fiber comprises:

18. The convex lens becomes a magnifying glass when:

19. Tick the correct mirror equation:

20. The human eye uses a convex lens system to form a: