Geometrical Optics – Online MCQs – Physics 10th

Online MCQs Test | Unit 13 : Geometrical Optics | Physics Class 10th | Sindh Board Science Group

Online MCQs Test of Chapter 13 (Geometrical Optics) Physics Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus of Sindh Board

1. A compound microscope uses

 
 
 
 

2. The focus lies behind the mirror in:

 
 
 
 

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

 
 
 
 

4. The ciliary muscles of the eye control the:

 
 
 
 

5. Concave lens is also called:

 
 
 
 

6. The size of the image is always smaller than the object in:

 
 
 
 

7. In a compound microscope, the focal length of the objective lens is:

 
 
 
 

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

 
 
 
 

9. Lenses form images through:

 
 
 
 

10. Refraction of light is caused by a change in speed, at the interface of two different mediums:

 
 
 
 

11. The convex lens becomes a magnifying glass when:

 
 
 
 

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

 
 
 
 

13. In a compound microscope, as compared to an objective, the eyepiece lens has a focal length:

 
 
 
 

14. magnifying glass is also called:

 
 
 
 

15. Which one of these has the largest refractive index?

 
 
 
 

16. Tick the correct mirror equation:

 
 
 
 

17. The S.I unit of power of a lens is:

 
 
 
 

18. For a diverging lens the focal length is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 


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