JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter
The ratio of the de-Broglie wavelengths of proton and electron having same kinetic energy: (Assume \(m_p=m_e \times 1849\) )
- A \(1: 43\)
- B \(1: 30\)
- C \(1: 62\)
- D \(2: 43\)
Answer & Solution
Correct Answer
(A) \(1: 43\)
Step-by-step Solution
Detailed explanation
\(\lambda \propto \frac{1}{\sqrt{ m }} \Rightarrow \frac{\lambda_{ p }}{\lambda_e}=\sqrt{\frac{ m _e}{ m _{ p }}}=1: 43\)
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