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An X ray tube is operated at 50kV, the m...

An X ray tube is operated at 50kV, the maximum wavelength produced is……..A.

A

0.75

B

0.25

C

1

D

2.5

Text Solution

Verified by Experts

The correct Answer is:
B
`lamda_(min)=(hc)/(Ve)=(6.625 times 10^-34 times 3 times 10^8)/(50 times 10^3 times 1.6 times 10^-19)`
`=2.48 times 10^-11`
`=0.25 times 10^-10 m=0.25 A`
In the present question, it should be minimum instead of maximum. Moreover, this topic is out of present syllabus.
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