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Law of Radioactivity

One of the fo...

Question

One of the following radiations are not emitted by electron transition in atoms, choose the option

A

Ultra violet

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B

Infrared radiations

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C

Visible rays

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D

α -

rays

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Solution

The correct option is D $α -$ rays
$α$ - rays are doubly ionized helium nuclie. So, in electron transetion in atoms $α$ - rays are not emitted whereas, ultra voilet, infrared radiations and visible rays can be emitted depending upon the change in energy levels.

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Similar questions

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Q. With regard to the assertion and reason, choose the correct option.
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Reason [R]: Nuclear fallout contains radioactive elements.

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