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Consider interference between waves form...

Consider interference between waves form two sources of intensities `I&4I`.Find intensities at point where the phase difference is `pi`

A

`I=I_(2)`

B

`I=2I_(2)`

C

`I=3I_(2)`

D

`I=0`

Text Solution

Verified by Experts

The correct Answer is:
A
`I= sqrt(I_(1)I_(2)) 2 cos (alpha_(1)-alpha_(2))`
`=I_(4)+4I_(1)+ sqrt(I_(1)4I_(1)) 2 cos pi`
`=I_(1)`
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NIKITA PUBLICATION-INTERFERENCE AND DIFFRACTION-MULTPLE CHOICE QUESTIONS
  1. Two sources of light having intensities I(1) and 4I(1) emit the light ...

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  2. The ratio of maximum intensity to minimum intensity due to interferenc...

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  3. Consider interference between waves form two sources of intensities I&...

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  4. In Young's double slit experiment, the intensity of light at a point o...

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  5. Ratio waves originating from sources S(1) and S(2) having zero phase d...

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  6. A coherent light is incident on two paralle slits S(1) and S(2). At a ...

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  7. Longitudinal waves do not exhibit

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  8. Two sources of light of intensities I and 4I emit light waves which in...

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  9. In experimental set up of interference the twol interfering sources S(...

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  10. Two coherent monochromatic light beams of intensities I and 4I are sup...

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  11. Interference fringes are obtained due to the interference of wave from...

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  12. The interference patter in which the positions of maximum and minimum...

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  13. To obtain a sustained iterference pattern, we requie two sourece which...

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  14. Two sources of waves are called coherent if

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  15. The contrast in the fringes in an interference pattern depends on

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  16. A monochromatic visible light, consiSt of

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  17. If the intensities of the two interfering beam in Young's double-slit ...

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  18. Two coherent sources must have the same

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  19. For steady interference, two two sources of light must be

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  20. A source of light is said to be monochromatic if it will emit light wa...

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