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An electromagnetic wave of frequency ups...

An electromagnetic wave of frequency `upsilon=3` MHz passes from vacuum into a dielectric medium with permittivity `epsilon=4`. Then

A

wave length doubled and frequency re mains unchanged

B

wave length is doubled and frequency be comes half

C

wave length is halved and frequency remains constant

D

wave length and frequency both remain unchanged

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AAKASH SERIES-ELECTROMAGNETIC WAVES-EXERCISE -II
  1. Lesch Nyhan disease is an X-linked recessive disorder that causes neur...

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  2. A parallel plate capacitor of plate separation 2 mm is connected in an...

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  3. A condenser has two conducting plates of radius 10cm separated by a di...

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  4. An AC rms voltage of 2V having a frequency of 50 KHz is applied to a c...

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  5. A condenser is charged using a constant current. The ratio of the mag...

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  6. The magnetic field between the plates of radius 12 cm separated by dis...

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  7. A wave of the wavelength 5900Å emitted by an atom or molecule must hav...

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  8. Electron exicted from lower orbit to higher orbit and returns back to ...

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  9. The cell constant is given by

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  10. An electromagnetic wave of frequency upsilon=3 MHz passes from vacuum ...

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  11. A plane electromagnetic wave of frequency 50 MHz travels in free space...

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  12. A plane electromagnetic wave of frequency 40 MHz travels in free space...

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  13. In an apparatus, the electric field was found to oscillate with an amp...

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  14. For plane electromagnetic waves propagating in the z-direction , which...

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  15. The amplitude of electric field in an electromagnetic wave is 60 Vm^(...

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  16. Light with an energy flux of 18W//cm^(2) falls on a non-reflecting sur...

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  17. A uniform round object of mass M, radius R and moment of inertia about...

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  18. Light with energy flux 36w/cm2 is incident on a well polished metal sq...

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  19. The maximum electric field of a plane electro- mag-netic wave is 88 V/...

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  20. The maximum electric field of a plane electro- mag-netic wave is 88 V/...

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