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A source radio signals of 100 MHz and mo...

A source radio signals of 100 MHz and moves towards an observer with a speed to `9Kms^(-1)`. The apparent change in the frequency of the signals is

A

3KHz

B

30KHz

C

3MHz

D

30MHz

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The correct Answer is:
A
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AAKASH SERIES-WAVES OPTICS-EXERCISE -II (INTERFERENCE)
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  2. A source radio signals of 100 MHz and moves towards an observer with a...

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  3. What speed should a galaxy move with respect to us so that the sodium ...

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  4. The displacement of two interfering light waves are y(1)=4 sin omega t...

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  5. Light waves of wave length lambda propagate in a medium. If M end N ar...

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  6. When two coherent monochromatic light beams of intensities 1 and 41 ar...

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  7. In an interference experiment, the ratio of the intensities of the bri...

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  8. A screen is at a distance of 2m from narrow slits that are illuminated...

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  9. In Young.s double slit experiment with a monochromatic light of wavele...

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  10. In Young.s double slit interference experiment the wavelength of ligh...

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  11. The intensity of central fringe in the interference pattern produced b...

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  12. In the case of interference, the maximum and minimum intensities are i...

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  13. In double slit experiment, the distance between two slits is 0.6 mm an...

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  14. In Young.s double slit experiment, blue-green light of wavelength 500n...

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  15. A double slit experiment is performed with light of wavelength 500nm. ...

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  16. When a mica plate of thickness 0.1mm is introduced in one of the inter...

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  17. The maximum number of possible interference maxima for slit separation...

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  18. Two light waves are represented by y(1)= a sin omega t" and "y(2)= a s...

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  19. An electromagnetic wave emitted by source travels 21 km to arrive at a...

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  20. Four light sources produce the following waves (I) y(1)= a sin (omeg...

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