1.

A particle of mass M at rest decays into two particles of masses m1 and m2, having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles, \[{{\lambda }_{1}}/{{\lambda }_{2}}\]is [IIT-JEE 1999; KCET 2003]

A.            \[{{m}_{1}}/{{m}_{2}}\]   
B.            \[{{m}_{2}}/{{m}_{1}}\]
C.                    1.0                                    
D.                    \[\sqrt{{{m}_{2}}}/\sqrt{{{m}_{1}}}\]
Answer» D.                    \[\sqrt{{{m}_{2}}}/\sqrt{{{m}_{1}}}\]


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