question_answer

A nucleus A, with a finite de-Broglie wavelength undergoes spontaneous fission into two nuclei B and C of equal mass. B flies in the same direction as that of A, while C flies in the opposite direction with a velocity equal to half of that of B. The de-Broglie wavelengths and  of B and C are respectively :- [JEE Main 8-4-2019 Afternoon]

A)

B)

C)

D)

Correct Answer: D

Solution :

[d]

let mass of B and C is m each.

By momentum conservation

De-Broglie wavelength