Which of the following is correct regarding Nuclear fusion?
(i) When two lighter nuclei moving at very high speeds fuse together to from a single heavier nucleus, then this phenomenon is called ‘Nuclear Fusion’
(ii) Solar energy is due to fusion. at sun, major process of fusion is carbon-carbon cycle and proton-proton cycle. Hydeogen bomb is based on fusion
(iii) For fusion take place, a very high temperature of the order of `10^(8)K` is needed
(iv) Some example of fusion are
`._(1)H^(2) +._(1)n^(2)rarr._(2)He^(3) +._(0)n^(1) + "energy"`
`._(2)He^(3) +._(1)H^(2)rarr._(2)He^(4) +._(1)H^(1) +"energy"`

Options

A. `(i),(ii),(iii)`
B. `(i),(ii),(iv)`
C. `(ii),(iii),(iv)`
D. all

Answer

D