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प्रश्न
Radiations given out from a source when subjected to an electric field in a direction perpendicular to their path are shown below in the diagram. The arrows show the path of the radiation A, B and C. Answer the following questions in terms of A, B and C.
1) Name the radiation B which is unaffected by the electrostatic field.
2) Why does the radiation C deflect more than A?
3) Which among the three causes the least biological damage externally.
4) Name the radiation which is used in carbon dating.
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उत्तर
1) Gamma radiations
2) Because of the mass of B particle is less than that of α, hence radiation deflects more than A.
3) `gamma` rays
4) beta radiation `""_6^14C -> ""_7^14N + ""_(-1)^0beta^(-)`
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube
Name the charged particles
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
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.
What do you mean by Atomic number
What is nucleus of an atom? Compare its size with that of the atom. Name its constitutents. How is the number of these constituents determined by the atomic number its atomic model.
State any two uses of cathode rays.
In a cathode ray tube state the purpose of covering cathode by thorium and carbon.
State three ways of obtaining an electron-beam.
Two radioactive materials A and B have decay constants 25λ and 16λ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of B to that of A will be "e" after a time `1/("a"lambda)` The value of a ______.
Which statement about gamma decay is correct?
