Physics · 2020
JEE Main · 9 January 2020, Shift 1 · Q17
A particle moving with kinetic energy E has de Broglie wavelength λ. If energy Δ E is added to its energy, the wavelength become λ / 2. Value of Δ E,…
A particle moving with kinetic energy E has de Broglie wavelength $\displaystyle \lambda$. If energy $\displaystyle \Delta \mathrm{E}$ is added to its energy, the wavelength become $\displaystyle \lambda / 2$. Value of $\displaystyle \Delta \mathrm{E}$, is :
Official answer
(3)
3E
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