Particle 
of mass 
, moving along the 
-axis with velocity 
, collides elastically with another particle 
at rest having mass 
. If both the particles move along the 
-axis after the collision, the change in de Broglie wavelength 
of particle 
in terms of its de Broglie wavelength ( 
) before collision is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Initial
Final
Applying momentum conservation,
…… ..(i)
Since, collision is elastic ( 
)
…… ..(ii)
On solving Eqs. (i) and (ii), 
Now, de Broglie wavelength of 
before collision,
Final de Broglie wavelength,
Now, 
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