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The electron emitted in beta radiation o...

The electron emitted in beta radiation originates from

A

inner orbits of atom

B

free electron existing in nuclei

C

decay of a neutron in a nucleus

D

photon escaping from the nucleus

Text Solution

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The correct Answer is:
C
During `beta-`decay, a neutron is transformed into a proton and an electron. This is why atomic number (Z= number of protons) increases by one and mass number (A= number of protons + neutrons) remains unchanged during beta decay.
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ALLEN -SIMPLE HARMONIC MOTION-Exercise-05(B)
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  2. Graph shows relation between intensity (I),wavelength for X-rays emitt...

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  3. The electron emitted in beta radiation originates from

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  4. A radioactive sample consists of two distinct species having equal num...

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  5. A Hydrogen atom and Li^(++) ion are both in the second excited state....

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  6. The potential difference applied to an X-ray tube is 5 kV and the curr...

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  7. The half life of .^(215)At is 100mu s. The time taken for the radioact...

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  8. Which of the following process represents a gamma- decay?

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  9. The electric potential between a proton and as electron is given by V=...

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  10. If the atom(100)Fm^(257) follows the Bohr model the radius of (100)Fm^...

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  11. For uranium nucleus how does its mass vary with volume?

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  12. A nucleus with mass number 220 initially at rest emits an alpha-partic...

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  13. The fig. shows the variation of photon current with anode potential fo...

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  14. A photon and an electron have equal energy E . lambda("photon")//lambd...

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  15. After 280 days, the activity of a radioactive sample is 6000 dps. The ...

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  16. A photon collides with a stationary hydrogen atom in ground state inel...

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  17. Kalpha wavelength emitted by an atom of atomic number Z=11 is lambda. ...

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  18. If a star can convert all the He nuclei completely into oxygen nuclei....

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  19. Half-life of a radioactive substance A is 4 days. The probability that...

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  20. The largest wavelength in the ultraviolet region of the hydrogen spect...

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