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Three coherent waves having amplitudes 12mm, 6mm and 4mm arrive at a given point with successive phase difference of `pi/2`. Then, the amplitude of the resultant wave is

A

7mm

B

10 mm

C

5 mm

D

4.8 mm

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The correct Answer is:
B
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AAKASH SERIES-WAVE OPTICS-Additional Practice Exercise (Level - I) (Main) Straight objective type questions
  1. The phase difference between two waves reaching a point is (pi)/(2). W...

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  2. Three coherent waves having amplitudes 12mm, 6mm and 4mm arrive at a g...

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  3. For constructive interference to take place between two monochromatic ...

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  4. If the amplitude ratio of two sources producing interference is 3:5 th...

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  5. Young's double slit experiment is made in a liquid. The tenth bright f...

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

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  7. In Young's double slit experiment the distance between slits is 2 xx 1...

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  8. In Young's double slit experiment, when light of wavelength 4000 A^(@)...

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  9. In Youngs double slit experiment, the phase different between two cohe...

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

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  11. In Young's double slit experiment, 12 fringes are observed to be forme...

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  12. Young's double-slit experiment is carried ot by using green, redj and ...

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  13. It is belived that the Universe is expanding and hence the distant sta...

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  14. The 6563 overset(o)(A) line emitted by hydrogen atom in a star is foun...

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  15. In context of Doppler's effect in light, the term 'red shift' sighifie...

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  16. Light enters in a glass slab of refractive index 3/2 and covers a dist...

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