jee-main 2021 Q17

jee-main · India · session4_26aug_shift2 Not Maths
The de-Broglie wavelength of a particle having kinetic energy $E$ is $\lambda$. How much extra energy must be given to this particle so that the de-Broglie wavelength reduces to $75\%$ of the initial value?
(1) $E$
(2) $\frac{7E}{9}$
(3) $\frac{16E}{9}$
(4) $\frac{E}{9}$
The de-Broglie wavelength of a particle having kinetic energy $E$ is $\lambda$. How much extra energy must be given to this particle so that the de-Broglie wavelength reduces to $75\%$ of the initial value?

(1) $E$

(2) $\frac{7E}{9}$

(3) $\frac{16E}{9}$

(4) $\frac{E}{9}$