Start Free Mock LoginAlready registered? Login here

Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsDe Broglie & Matter WavesMedium2 minPYQ_2016

PhysicsMediumsingle choice

Electrons of mass, $m$ with de-Broglie wavelength, $λ$ fall on the target in an X-ray tube. The cutoff wavelength, $(λ_{0})$ of the emitted X-ray isNEET 2016 (Phase 2)

Options:

Answer:

Solution:

Momentum, $P = \frac{h}{λ} \Rightarrow E = \frac{P^{2}}{2 m} \Rightarrow \frac{h^{2}}{2 m λ^{2}} = \frac{h c}{λ_{0}}$

$\Rightarrow λ_{0} = \frac{h c}{h^{2}} 2 m λ^{2}$

$= \frac{2 m c λ^{2}}{h}$ .

Stream:NEETSubject:PhysicsTopic:Modern PhysicsSubtopic:De Broglie & Matter Waves

⏱ 2mℹ️ Source: PYQ_2016

Doubts & Discussion

Loading discussions...