Question

Assertion : Perspiration from human body helps in cooling the body.

Reason : A thin layer of water on the skin enhances its emissivity.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

Answer 1

Correct option (c) A is true but R is false

Explanation :

Assertion is true. The body attains the sensation of cooling after perspiration. This is caused due to evaporation process. The reason is false.