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प्रश्न
Name a common device where a hot cathode ray tube is used.
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उत्तर
Hot cathode ray tube is used in T.V.
संबंधित प्रश्न
In a cathode ray tube, what is the function of anode?
Write one use of cathode ray tube.
Give a scientific explanation.
When the radiation coming out from a certain radioactive substance is passed through an electric field, marks are found at three places on the photographic plate placed in its path.
State the penetrating range of α, β and γ radiations.
A radioactive source emits three types of radiations.
Name the radiation which has the highest ionizing power.
It is advised not to touch a radioactive substance by hand. Give reason.
The count rate of activity of a radioactive sample of a very large population decreased from 1024 to 128 in 3 minutes. Then the rate of disintegration at the end of 5 minutes is ______.
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
A deuteron strikes 8O16 nucleus with subsequent emission of an alpha particle. Identify the nucleus so produced:
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.
