**Question:** A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is

(A) 16/81

(B) 8/9

(C) 8/27

(D) 2/3

**Answer:** Option (B)

**Solution:**

with
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**Question:** A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is

(A) 16/81

(B) 8/9

(C) 8/27

(D) 2/3

**Answer:** Option (B)

**Solution:**