JEE Mains · Physics · STD 12 - Dual nature of radiation and matter
- JEE Mains 2025
- Medium
- MCQ
An electron with mass ' \(m\) ' with an initial velocity \((\mathrm{t}=0) \overrightarrow{\mathrm{v}}=\mathrm{v}_0 \hat{\mathrm{i}} \quad\left(\mathrm{v}_0 \gt 0\right)\) enters a magnetic field \(\vec{B}=B_0 \hat{j}\). If the initial de-Broglie wavelength at \(\mathrm{t}=0\) is \(\lambda_0\) then its value after time ' t ' would be :
Pick an option to check your answer.
Answer & Solution
Correct Answer
(D) \(\lambda_0\)
Step-by-step Solution
Detailed explanation
Magnetic field does not work
\(\therefore\) Speed will not charge, so De-Broglie wavelength remains same.
\(\therefore\) Speed will not charge, so De-Broglie wavelength remains same.
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