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Three coherent waves having amplitudes 12mm. 6mm and 4 mm 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 (pi)/(2). What...

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

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  3. For destructive interference to take place between two monochromatic l...

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  4. If the amplitude ratio of two sources producing interference is 3.5, t...

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  5. Young's double slite experiment is made in a liquid. The 10th bright f...

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

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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 YDSE, the phase difference between two coherent sources is pi//3 co...

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  10. In Young's double slit experimentt. When a glass plate (mu = 1.5) of t...

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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 out by using green, red and ...

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  13. It is believed that the universe is expanding and hence the distant st...

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  14. The 6563A^(@) line emitted by hydrogen atom in a star is found to be r...

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

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

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