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प्रश्न
Name the radiations which are absorbed by greenhouse gases in the earth’s atmosphere.
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उत्तर
Infrared radiations of long wavelengths are absorbed by greenhouse gases in the Earth’s atmosphere.
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
State the approximate voltage used to heat the filament
An element `""_ZS^A` decays to `""_85R^222` after emitting 2 α particles and 1 β particle.
Find the atomic number and atomic mass of the element S.
State the penetrating range of α, β and γ radiations.
Radioactive substances were found to give off three types of rays. Name them. How do they
(a) React to the magnetic field?
(b) React to the electric field?
(c) Act when different thickness of lead sheets is placed in their path?
What happens to the position of an element in the periodic table when it emits an alpha particle
State two properties that a substance should possess when used as a thermionic emitter.
State three common properties of beta rays and cathode rays.
88Ra226 experiences three α - decay. Find the number of neutrons in the daughter element.
When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus of charge Ze, its distance of closest approach from the nucleus depends on m as:
