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To demonstrate the phenomenon of interfe...

To demonstrate the phenomenon of interference, we require two sources which emit radiation ......

A

of nearly the same frequency.

B

of the same frequency

C

of different wavelength

D

of the same frequency and having a definite phase relationship.

Text Solution

Verified by Experts

The correct Answer is:
D
There should be two coherent sources for stationary interference and for coherent sources, frequency is same and phase difference is zero or constant.
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KUMAR PRAKASHAN-WAVE OPTICS-SECTION-D (MULTIPLCE CHOICE QUESTIONS (MCQS)) (MCQS FROM DARPAN BASED ON TEXTBOOK)
  1. Two towers on top of two hills are 40 km apart. The line joining them ...

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  2. A parallel beam of light of wavelength 500 nm falls on a narrow slit a...

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  3. To demonstrate the phenomenon of interference, we require two sources ...

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  4. The angle of incidence at which reflected light totally polarised for ...

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  5. The maximum number of possible interference maxima for slit-separation...

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  6. A Young's double slit experiment uses a monochromatic source. The shap...

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  7. If unpolarised light of intensity I(0) is incident on the polarising p...

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  8. On screen there are two bright points at a distance I mm. These points...

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  9. if the intensity of the principal maximum in the single slit Fraunhoff...

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  10. In a Young's double slit experiment the intensity at a point where the...

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  11. A mixture of light consisting of wavelength 590 nm and an unknown wave...

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  12. At two points P and Q on a screen in Young's double slit experiment, w...

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  13. In Young's double slit experiment, the two slits act as coherent sourc...

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  14. In Young's double slit experiment, one of the slit is wider than other...

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  15. A beam of unpolarised light of intensity is passed through a polaroid ...

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  16. Two coherent point sources S(1) and S(2) are separated by a small dist...

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  17. Two beams, A and B of plane polarised light with mutually perpendicula...

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  18. The box of a pin hole camera of length L has a hole of radius a. It is...

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  19. In a Young's double slit experiment, slits are separated by 0.5 mm and...

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  20. An observer is moving with half the speed of light towards a stationar...

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