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To destroy cancer cells……. Are used....

To destroy cancer cells……. Are used.

A

X - rays

B

Gamma rays

C

Ultraviolet rays

D

Infrared rays

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-ELECTROMAGNETIC WAVES-SECTION D MULTIPLE CHOICE QUESTIONS (MCQs) MCQs asked in Competitive Exams
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  6. Formula for velocity of electromagnetic wave in vacuum (C ) is …..

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  7. Which of the following group has the frequency of electromagnetic ray ...

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  8. A radiation of energy 'E' falls normally on a perfectly reflecting sur...

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  9. Energy of one photon of radiant energy is 15 keV. Then this radiation ...

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  10. A 100 Omega resistance and a capacitor of 100 Omega reactance are conn...

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  11. An em wave is propagating in a medium with a velocity vec(V)=V hat(i)....

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  12. A 20 mu F capacitor is being charged by some constant voltage source. ...

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  13. Which colour of the light has the longest wavelength ?

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  14. Velocity of light = ……

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  15. Which electromagnetic waves can be used to obtain electrical energy ?

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  16. The dimensional formula of mu(0) in(0) is ……..

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  17. Frequency of various radiations are given as f(v) to Visible light,...

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  18. Dimension of 1/(mue) is same as dimension of…….

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  19. Frequency of FM radio band is from…….

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  20. To destroy cancer cells……. Are used.

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