Punjab 11th Class Physics Chapter 9 Physical Optics Mcqs Test Online
Questions 12
Total Marks 24
Time 12 Mins
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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. Signal from a remote control to the device operated by it travels with the speed of:

Question 1 of 12

Question 2 of 12

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

Question 2 of 12

Question 3 of 12

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

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Question 4 of 12

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

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Question 5 of 12

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

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Question 6 of 12

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

Question 6 of 12

Question 7 of 12

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

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. 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 9 of 12

Question 10 of 12

10. 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 ?

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Question 11 of 12

11. 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

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Question 12 of 12

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

Question 12 of 12


 

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