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The velocity of light in vacuum can be changed by changing

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Important Questions on Electromagnetic Waves

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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 38
In an electromagnetic wave, the electric and magnetizing fields are 100 Vm-1 and 0.265 Am-1. The maximum energy flow is
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 39
In an apparatus, the electric field was found to oscillate with an amplitude of 18 V m-1. The magnitude of the oscillating magnetic field will be
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 40
If a source is transmitting electromagnetic wave of frequency 8.2×106 Hz, then wavelength of the electromagnetic waves transmitted from the source will be
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 41
There are three wavelength 107 m, 10-10 m, 10-7 m. Find their respective names :
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 42
Electromagnetic radiation of highest frequency is
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 43
The range of wavelength of visible light is
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 44
Which of the following statement is true?
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Alpha Question Bank for Medical: Physics>Chapter 29 - Electromagnetic Waves>Exercise-1>Q 45
The ozone layer absorbs