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Q.

Which of the following radiations has the least wavelength?:


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a

α rays

b

β rays

c

¥ rays

d

x-rays 

answer is C.

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Detailed Solution


Concept: Gamma has the shortest wavelength because it has a greater frequency, which means it can send out more waves per second than any other type of radiation.
A gamma ray (g) is a packet of electric radiation (photon) emitted by the nucleus of some radionuclides during radioactive decay. The photons with the highest energy in the electromagnetic spectrum are known as gamma photons.
Hence, option 3 is correct.
 
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