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प्रश्न
Name a gas caused by the Greenhouse effect
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उत्तर
A gas caused by the greenhouse effect is carbon dioxide.
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संबंधित प्रश्न
What do you mean by Mass number.
In the following fig. shows a radioactive source S in a thick lead container. The radiations pass through an electric field between the plates P and Q. Complete the diagram to show the paths of α , β and γ radiations.
Why is the source S placed in a thick lead container?
State three safety precautions that you would take while handling the radioactive substances.
Why are materials of low work function preferred as thermionic cathode materials?
Name the three main parts of a Cathode Ray Tube.
Name a common device where a hot cathode ray tube is used.
An electrons emitter must have how much work function and melting point.
In the following atoms, which one is a radioisotope? Give one use of this isotope.
O16, C14, N14, He4
Assertion (A): The force of repulsion between atomic nucleus and α-particle varies with distance according to inverse square law.
Reason (R): Rutherford did α-particles scattering experiment.
