Question

Explain the following :
(I) Cooking is easier in pressure cooker.
(ii) A beam of white light splits into seven colours when passed through a glass prism
(b) Distinguish between nuclear fission and nuclear fusion

Answer 1

(i) Cooking is easier in pressure cooking because the heat builds up quickly as the amount of pressure is high.
(ii) A beam of light separates when passed into a prism as refractive index varies in different objects
(iii) Nuclear fission is a nuclear reaction which results in splitting of a nuclear atom
Nuclear fusion is another reaction in a nuclear reaction that ends up 2 or more nuclear atoms into one