Modern Physics 4 Question 2
2. A particle is formed due to a completely inelastic collision of particles and having de-Broglie wavelengths and , respectively. If and were moving in opposite directions, then the de-Broglie wavelength of is (Main 2019, 9 April II)
(a)
(b)
(c)
(d)
Show Answer
Solution:
- Initially,
We have, de-Broglie wavelengths associated with particles are
Finally, particles collided to form a single particle.
As we know that linear momentum is conserved in collision, so
So, de-Broglie wavelength of combined particle is