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प्रश्न
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
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उत्तर
When a cathode ray beam strikes a zinc sulphide screen, a bright spot is seen on the screen.
संबंधित प्रश्न
Arrange α, β, and γ rays in ascending order with respect to their
1) Penetrating power.
2) Ionising power
3) Biological effect
Name a gas caused by the Greenhouse effect
An electromagnetic radiation is used for photography in fog. [2]
(i) Identify the radiation.
(ii) Why is this radiation mentioned by you, ideal for this purpose ?
What do you mean by Atomic mass
Define the term radioactivity.
How is a cathode ray beam affected while passing through an electric field?
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
In U238 ore containing Uranium the ratio of U234 to Pb206 nuclei is 3. Assuming that all the lead present in the ore is final stable product of U238. Half life of U238 to be 4.5 × 109 years and the age of ore is ______ × 109 years. (in 109 years)
Complete the following radioactive reaction:
\[\ce{^-_-X -> ^-_-Y + ^4_2He -> ^234_91Z + ^0_-1e}\]
