MCQ on Class 12 Physics Chapter 9 Ray Optics and Optical Instruments with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 9 Ray Optics and Optical Instruments with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Ray Optics and Optical Instruments Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation

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Ray Optics and Optical Instruments Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Physics Chapter 9 Ray Optics and Optical Instruments with Answers

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1. When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is :

 
 
 
 

2. An astronomical refractive telescope has an objective of focal length 20 m and an eyepiece of focal length 2 cm. Then

 
 
 
 

3.  
For a total internal reflection, which of the following is correct?

 
 
 
 

4.  
Which of the following cannot be polarised?

 
 
 
 

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

 
 
 
 

6.  
The air bubble inside water shine due to:

 
 
 
 

7. Two thin lenses of focal lengths 20 cm and 25 cm are placed in contact. The effective power of the combination is:

 
 
 
 

8. Light year is the unit of:

 
 
 
 

9. Which of the following colour of white light deviated most when passes through a prism?

 
 
 
 

10.  If a glass prism is dipped in water, its dispersive power

 
 
 
 

11.  
What is the relative refractive index of water with respect to glass?

 
 
 
 

12.  
Two concave mirrors have the same focal length but the aperture of one is larger than that of the other. Which mirror forms the sharper image and why?

 
 
 
 

13. Radio waves from an antenna travel with the velocity of:

 
 
 
 

14. Two beams of red and violet color are made to pass separately through a prism (angle of the prism is 60°). In the position of minimum deviation, the angle of refraction will be

 
 
 
 

15. A person is six feet tall. How tall must a plane mirror be if he is able to see his entire length?

 
 
 
 

16. A rod of length 10 cm lies along the principal axis of a concave mirror of focal length 10 cm in such a way that its end closer to the pole is 20 cm away from the mirror. The length of the image is

 
 
 
 

17. When light travels from one medium to another, which of the following does not change?

 
 
 
 

18. A convergent lens will become less convergent in :

 
 
 
 

19. A double convex air bubble in water behaves as:

 
 
 
 

20. Which produces additional luminiscence in a fluorescent tube?

 
 
 
 

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