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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
A radiation X is focused by a particular device on the bulb of a thermometer and mercury in the thermometer shows a rapid increase. Name the radiation X
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
Give one example of isobars.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
Define free electrons.
State two characteristics of the substance used as thermionic emitter.
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
An electrons emitter must have how much work function and melting point.
Which of the following statements is/are correct?
- α particles are photons
- Penetrating power of γ radiation is very low
- Ionization power is maximum for α rays
- Penetrating power of γ radiation is very high
