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The amplitude moduclated waves (AM) used...

The amplitude moduclated waves (AM) used in ratio broadcasting bend apperciably round the corners of a `1m xx 1m` wall but the frequnency modulated waves (FM) bend only negligibl.If the avereage wavelengths of AM and FM waes are `lambda_1` and `lambda_2`,then

A

`lambda_1gtlambda_2`

B

`lambda_1=lambda_2`

C

`lambda_1ltlambda_2`

D

cannot be predicted.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. What happens,if the monochromatic light used in Young's double slit ex...

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  2. While both light and sound show wave chracter,diffraction is much hard...

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  3. The amplitude moduclated waves (AM) used in ratio broadcasting bend ap...

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  4. Scattering of light is a direct consequence of

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  5. The width of the difraction band varies

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  6. If the diffraction pattern due to single slit of width a with incident...

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  7. What will be the effect on the interferece fringes,if red light is rep...

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  8. The interfernce phenomenon differs from diffraction in that unlike dif...

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  9. The resolution limit of the eye is 1 minute.At a distance x km from th...

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  10. Two points separated by a distance of 0.1 mm can just be inspected in ...

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  11. the limit of resolution of a 100 cm aperture telescope for light for w...

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  12. The liit of resuolution of one meter radio telescope for radio waves ...

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  13. The aperture of the largest telescope in teh world is of the order of ...

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  14. Which of the following phenomenon shows the transverse nature of light...

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  15. The waves that cannot be polarised are:

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  16. When a polariod is rotated,the intenstiy of ligth is not found to vary...

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  17. What are plane of polarisation and plane of vibration?

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  18. In the propagation of ligth waves,the ngle between the direction of pr...

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  19. When the light is incident at the polarising angle ,which of the follo...

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  20. A ray of light is incident on a medium at polarising angle .What is th...

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