Tessellate S.T.E.M.S - Physics - School - Set 1 - Problem 3

Level 2

A beam of 28 k e V 28 \space keV electrons strikes a target generating X-rays. The minimum wavelength λ m i n \lambda_{min} (called cut-off wavelength) of the X-rays generated is

This problem is a part of Tessellate S.T.E.M.S.

0.44 nm 44 nm 0.044 nm 4.4 nm

Writabrata Bhattacharya by Writabrata Bhattacharya , 22, India

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2 solutions

. .
Mar 11, 2021

I don't know what k e V keV means, but the answer is 44 micrometers, so converting it into the answer, nanometer unit, then it is 0.044 nm \boxed { 0.044 \text { nm } } .

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Souhadri Acharya
Jan 12, 2018

Well going through the graphs of wavelength distribution of X-ray it's clear that min value of a Wave length is 35 of 10^-12 metres So we easily conclude abt the obvious sol of 0.044

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