ICSE Class 10 Physics Question 5 of 20

Solved 2019 Question Paper ICSE Class 10 Physics — Question 19

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Question

Question 4(d)

(i) Why is a nuclear fusion reaction called a thermo nuclear reaction? [2]

(ii) Complete the reaction:

3He2 + 2H14He2 + .......... + Energy

Answer

(i) A nuclear fusion reaction is called a thermo nuclear reaction because it takes place at a temperature of nearly 107 K (10 million).

(ii) 3He2 + 2H14He2 + 1H1 + Energy