Punjab 11th Class Physics Chapter 9 Physical Optics Mcqs Test Online

Total Question
12 Questions
Total Marks
24 Marks
Total Time
12 Minuts
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Test Name



Ch.9 # Physical Optics

Subject



Physics (11th Class)

Test Type



Mcqs


Punjab 11th Class Physics Chapter 9 Physical Optics Mcqs Test Online

Physics Chapter 9 Physical Optics Mcqs Test Online Punjab Class 11th

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Question 1 of 12

Physics

1. In the Young’s double slit experiment the separation between the slits is halved and the distance between the slits and the screen is double. The fringe width is

Question 1 of 12

Question 2 of 12

2. Two monochromatic radiating X and Y are incident normally on a diffraction grating. The second order intensity maximum for X coincides with the third order intensity maximum for Y.
What is the ratio wavelength X/wavelength Y ?

Question 2 of 12

Question 3 of 12

3. Which of the following three regions of the electromagnetic spectrum in order of increasing wavelength, visible radiation.

Question 3 of 12

Question 4 of 12

4. Coloured fringes observed in soap bubbles are the examples of

Question 4 of 12

Question 5 of 12

5. Light of wavelength λ is incident normally on a diffraction grating for the slit spacing is equal to 3λ. What is the sin θ of the angle between the second order maximum and the normal:

Question 5 of 12

Question 6 of 12

6. Which one of the following properties of light does not change when it enters from one medium to another medium?

Question 6 of 12

Question 7 of 12

7. During a sunny day we see the objects in a class room even when all the electric lights are off, due to:

Question 7 of 12

Question 8 of 12

8. The principle of Young’s double slits experiment is based on the division of:

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Question 9 of 12

9. Signal from a remote control to the device operated by it travels with the speed of:

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Question 10 of 12

10. The principle of Michelson interferometer is based on the division of

Question 10 of 12

Question 11 of 12

11. Which one of the following properties proves the transverse wave nature of light.

Question 11 of 12

Question 12 of 12

12. The tip of a needle does not give a sharp image. It is due to

Question 12 of 12


 

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