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Electrons are accelerated in television ...

Electrons are accelerated in television tubes through potential difference of about 10 KV.
(1) The lowest wavelength of the emitted X-rays is `12.4 overset(@)A`.
(2) The lowest wavelength of the emitted X-rays is `1.24 overset(@)A`
(3) The highest frequency of the emitted X-rays is `2.4xx10^(8)Hz`
(4) The higher frequency of the emitted X-rays is `2.4xx10^(18)Hz`

A

1,2 and 3 are correct

B

3 and 2 are correct

C

4 and 4 are correct

D

3 and 3 are correct

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