Geometrical Optics – Online MCQs – Physics 10th

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

2. A spherical mirror whose inner curved surface is reflecting is called:

3. A compound microscope uses

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

5. The convex lens becomes a magnifying glass when:

6. A magnifying glass forms an enlarged:

7. Magnification = ?

8. The ratio of the sine angle of incidence to the sine angle of refraction gives us a constant called the:

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

10. Concave lens is also called:

11. The angle of incidence that causes the refracted ray to bend through 90° is called

12. An optical fiber comprises:

13. The human eye acts like a:

14. Tick the correct mirror equation:

15. The nature, position, and size of the image formed by a convex lens depend on the position of the object about point/s:

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

17. A ray of light incident at an angle to the normal bends towards the normal when it enters into an optically:

18. In this eye defect, the image of a distant object is formed in front of the retina and not at the retina itself.

19. When the angle of refraction is 90° and the refractive index for water is 1.33, the critical angle is:

20. The inner part of the fibre optics which carries light is called: