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Three waves of equal frequency having am...

Three waves of equal frequency having amplitudes `10mum`, `4mum`, `7mum` arrive at a given point with successive phase difference of `pi//2`, the amplitude of the resulting wave in `mum` is given by

A

4

B

5

C

6

D

7

Text Solution

Verified by Experts

The correct Answer is:
B

Resultant amplitude `A=sqrt((3)^(2)+(4)^(2))=5 mum`
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CP SINGH-WAVE NATURE OF LIGHT-EXERCISES
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  2. In Young's interference expriment with one source and two slits, one s...

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  3. Three waves of equal frequency having amplitudes 10mum, 4mum, 7mum arr...

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  4. Fig, here shows P and Q as two equally intense coherent sources emitti...

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  5. In Young's experiment, monochromatic light is used to illuminate the t...

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  6. In a Young's double-silt experiment the source slit S and the two slit...

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  7. When a transparent parallel plate of uniform thickness t and refractiv...

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  8. Light of wavelength 5000 Å is travelling in air. A thin glass plate (m...

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  9. If a transparent medium of refractive index mu=1.5 and thickness t=2.5...

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  10. A thin sheet of glass (refractive index 1.5) of thickness 6 microns, i...

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  11. A thin mica sheet of thickness 2xx10^-6m and refractive index (mu=1.5)...

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  12. Interference fringes were produced in Young's double-slit experiment u...

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  13. When one of the slits of Young's experiment is covered with a transpar...

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  14. In the ideal double-slit experiment, when a glass-plate (refractive in...

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  15. A monochromatic beam of light fall on YDSE apparatus at some angle (sa...

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  16. In double slit experiment fringes are obtained using light of waveleng...

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  17. When exposed to sunlight, thin films of oil on water often exhibit bri...

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  18. When viewed in white light, soap bubbles show colours because of

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  19. A parallel beam of sodium light of wavelength 6000 Å is incident on a ...

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  20. If wavelength 4500 Å and 6000 Å are found to be missing in the reflect...

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