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JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter
An electron of mass \(m _{ e }\) and a proton of mass \(m _{ p }=1836 m _{ e }\) are moving with the same speed. The ratio of their de Broglie wavelength \(\frac{\lambda_{\text {electron }}}{\lambda_{\text {proton }}}\) will be ....... .
- A \(1836\)
- B \(1\)
- C \(918\)
- D \(\frac{1}{1836}\)
Answer & Solution
Correct Answer
(A) \(1836\)
Step-by-step Solution
Detailed explanation
\(\frac{\lambda_{ e }}{\lambda_{ p }}=\frac{\frac{ h }{ m _{ e } v }}{\frac{ h }{ m _{ p } v }}=1836\)
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