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प्रश्न
Name one radiation having the wavelength longer than the wavelength of these radiations.
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उत्तर
Visible or infrared or microwaves or radio waves.
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संबंधित प्रश्न
What is the range of the wavelength of the following electromagnetic waves?
(a) Gamma rays.
Continuous X-rays are made to strike a tissue paper soaked with polluted water. The incoming X-rays excite the atoms of the sample by knocking out the electrons from the inner shells. Characteristic X-rays are analysed and the intensity is plotted against the wavelength. Assuming that only Kα intensities are detected, list the elements present in the sample from the plot. Use Moseley's equation v − (25 × 1014Hz)(Z − 1)2.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
Name the scientist who discovered Microwaves
Name the part of the electromagnetic spectrum which is:
Produced by bombarding a metal target with high electrons.
Name the radiation of the electromagnetic spectrum which is used for the following:
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Answer briefly.
Why are microwaves used in radar?
Microwaves are electromagnetic waves with frequency in the range of.
Write two uses of the following radiation.
X-rays
Give any two uses of infrared waves.
Assertion (A): Ultraviolet radiations is scattered more as compared to the microwave radiations.
Reason (R): Wavelength of ultraviolet radiation is more than the wavelength of microwave radiation.
