AP EAMCET · PHYSICS · Electromagnetic Waves
The minimum wavelength of X-rays produced by 20 kV electrons is nearly
- A \(0.62 Å\)
- B \(1.8 Å\)
- C \(3.2 Å\)
- D \(6.5 Å\)
Answer & Solution
Correct Answer
(A) \(0.62 Å\)
Step-by-step Solution
Detailed explanation
\(\lambda_{min} = \frac{hc}{eV} = \frac{12400}{V \text{ (in V)}} \text{ Å}\) \(\lambda_{min} = \frac{12400}{20 \times 10^3} = 0.62 \text{ Å}\)
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