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A neutron of mass 1.67×10–27kg moving with a velocity 2×106ms–1 collides with a deuteron of mass 3.34×10–27kg at rest. After collision, if both move as a single particle finds its velocity.

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a

3.19×105m/s

b

1.25×105m/s

c

1.39×105m/s

d

6.28×105m/s

answer is D.

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Detailed Solution

v=m1u1+m2u2M1+M2 V1=1.67×10−27×2×106+0(1.67+3.34)10−27V1=1.67×106×25.01=3.19×105×2 =6.67×105m/s

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A neutron of mass 1.67×10–27kg moving with a velocity 2×106ms–1 collides with a deuteron of mass 3.34×10–27kg at rest. After collision, if both move as a single particle finds its velocity.