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प्रश्न
Which of the following statement is NOT true about the properties of electromagnetic waves?
पर्याय
These waves do not require any material medium for their propagation
Both electric and magnetic field vectors attain the maxima and minima at the same time
The energy in electromagnetic wave is divided equally between electric and magnetic fields
Both electric and magnetic field vectors are parallel to each other
उत्तर
Both electric and magnetic field vectors are parallel to each other
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संबंधित प्रश्न
About 5% of the power of a 100 W light bulb is converted to visible radiation. What is the average intensity of visible radiation
(a) at a distance of 1 m from the bulb?
(b) at a distance of 10 m?
Assume that the radiation is emitted isotropically and neglect reflection.
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(a) 10–12 m < λ < 10–8 m
(b) 10–3 m < λ < 10–1 m
Write one use for each.
Speed of electromagnetic waves is the same
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Radio waves for FM radio have a frequency about ______.
The source of electromagnetic waves can be a charge ______.
- moving with a constant velocity.
- moving in a circular orbit.
- at rest.
- falling in an electric field.
An electromagnetic wave is produced by a charge ______.
Name the electromagnetic wave/radiation which is used to study crystal structure.
