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Question

An X-Ray tube operates at a p.d. of 12400 V. The wavelength of the highest frequency X-Rays emitted by this tube is nearly:(hc=1240 eVnm)
  1. 12.4Ao
  2. 1.24Ao
  3. 2.48Ao
  4. 1Ao

A
12.4Ao
B
2.48Ao
C
1Ao
D
1.24Ao
Solution
Verified by Toppr

Energy=p.d×e
=12400V×e
=12400 eV
Energy=hcλ
λ=hcenergy
=124012400 nm
=0.1 nm
=1 A0

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