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Question

Which of the following rays is not an electromagnetic wave?

A
βrays
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B
Heat rays
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C
Xrays
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D
γrays
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Solution

The correct option is A βrays
βrays are fast-moving electrons. So, they are not an electromagnetic wave.

While heat rays, Xrays and γrays are electromagnetic waves.

Hence, option (A) is the correct answer.

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