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When a beam of accelerated electrons hit...

When a beam of accelerated electrons hits a target , a continuous `X` - ray spectrum is emitted from the target. Which of the following wavelength is absent in `X` - ray spectrum , if the `X` - ray tube is operating at `40,000 "volts"`?

A

0.25 Å

B

0.5 Å

C

1.5 Å

D

1.0 Å

Text Solution

Verified by Experts

The correct Answer is:
A
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