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प्रश्न
How is a cathode ray beam affected while passing through a magnetic field?
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उत्तर
A cathode ray beam while passing through a magnetic field is deflected in a direction normal to both the direction of magnetic field and the direction of its travel, as given by Fleming’s left hand rule.
संबंधित प्रश्न
Represent the change in the nucleus of a radioactive element when a β particle is emitted.
What is meant by radioactivity?
Why should a radioactive substance not be touched by hands?
What are the types of emission?
Mention four properties of Becquerel rays.
Mention one important function of ear main parts:
State the principle on which the functioning of a nuclear reactor is based.
If 10% of a radioactive substance decays in every 5 years, then the percentage of the substance that will have decayed in 20 years will be ______.
Complete the following radioactive reaction:
\[\ce{^-_-X -> ^-_-Y + ^4_2He -> ^234_91Z + ^0_-1e}\]
Assertion (A): Hydrogen atom consists of only one electron but its emission spectrum has may lines.
Reason (R): Only Lyman series is found in the absorption spectrum of hydrogen atom whereas in the emission spectrum, all the series are found.
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.
