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Standard XII
Physics
Beta Decay
In an electro...
Question
In an electron capture, characteristic X-rays are emitted.
A
True
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B
False
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Solution
The correct option is
A
True
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Similar questions
Q.
Assertion :
K
-shell electron capture is detected by analysing the wavelength of
X
-ray emitted. Reason: The wavelength of the
X
-ray is characteristic of the daughter element and not the parent element.
Q.
Hg
80
197
decay to
Au
79
197
through electron capture with a decay constant of 0.257 per day. (a) What other particle or particles are emitted in the decay? (b) Assume that the electron is captured from the K shell. Use Moseley's law √v = a(Z − b) with a = 4.95 × 10
7
s
−1
/2
and b = 1 to find the wavelength of the K
α
X-ray emitted following the electron capture.
Q.
Is it possible that in a Coolidge tube characteristic Lα X-rays are emitted but not Kα X-rays?
Q.
Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. K shell electrons of tungsten have ionization energy 72.5 keV. X-rays emitted by the tube contain only
Q.
Solid targets of different elements are bombarded by highly energetic electron beam. The frequency of the characteristic X-rays emitted from different targets, varies with atomic number
Z
as
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