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The frequencies of X-rays, gamma-rays an...

The frequencies of `X`-rays, `gamma`-rays and ultraviolet rays are respectively `a, b and c` .Then

A

`a lt b`, `b lt c`

B

`a gt b`, `b gt c`

C

`a gt b`, `b lt c`

D

`a lt b`,`b gt c`

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The correct Answer is:
D
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