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An electron beam is accelerted by a pote...

An electron beam is accelerted by a potential difference V to hit a metallic target ot produce X-ray . It produces continuous as well as characteristic X-rays. If `lambda_(min)` is the smallest possible wavelength of X-ray in the spectrum, the variation of log `lambda_(min)` with log V is correctly represented in

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda_(min)=(hc)/(eV) or, log lambda_(min) =-log V+log((hc)/e)`
The negative sign implies negative slope.
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