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प्रश्न
Name the radiation which can be detected by thermopile.
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उत्तर
Infrared radiation
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संबंधित प्रश्न
What is the range of the wavelength of the following electromagnetic waves?
(a) Visible.
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The energy of a photon of a characteristic X-ray from a Coolidge tube comes from
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The energy of a silver atom with a vacancy in K shell is 25.31 keV, in L shell is 3.56 keV and in M shell is 0.530 keV higher than the energy of the atom with no vacancy. Find the frequency of Kα, Kβ and Lα X-rays of silver.
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
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Answer briefly.
Give two uses of radio waves.
