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Dual Nature Of Radiation And Matter

Question
CBSEENPH12047706

The minimum wavelength of X-ray emitted by X-ray tube is 0.4125 Ao. The accelerating voltage is

  • 30 kV

  • 50 kV

  • 80 kV

  • 60 kV

Solution

A.

30 kV

From the formula

e V =hcλV =h ce λ  =6.6×10-34×3×1081.6×10-19×0.4125×10-10 =30 × 103 volt =30 kvolt