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प्रश्न
How is a cathode ray beam affected while passing through an electric field?
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उत्तर
A cathode ray beam while passing through an .electric field is deflected towards the positive plate (i.e. towards higher potential).
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संबंधित प्रश्न
Answer the following questions based on a hot cathode ray tube.
What will happen to the beam when it passes through the electric field?
What are free electrons?
When is said to be the nucleus unstable?
Radioactive substances were found to give off three types of rays. Name them. How do they
(a) React to the magnetic field?
(b) React to the electric field?
(c) Act when different thickness of lead sheets is placed in their path?
What are the types of emission?
State two characteristics of the substance used as thermionic emitter.
State two properties that a substance should possess when used as a thermionic emitter.
Two radioactive nuclei are represented by xAp and yAq and when p and q are mass numbers and x, y are the atomic number. How can the products be represented, i .e., what are the new values of p, q. x and y after the emission of an α-particle and a β-particle from A and B respectively.
A radioctive sample decays `7/8` times its original quantity in 15 minutes. The half-life of the sample is ______.
A radioactive element is placed in an evacuated chamber. Then the rate of radioactive decay will ______.
