Assertion: Perspiration from human body helps in cooling the body. Reason: A thin layer of water on the skin enhances its emissivity.

Question

Assertion: Perspiration from human body helps in cooling the body. Reason: A thin layer of water on the skin enhances its emissivity. (A) If both assertion and reason are true and reason is the correct explanation of the assertion (B) If both assertion and reason are true but reason is not the correct explanation of the assertion (C) If assertion is true, but reason is false (D) Both assertion and reason are false statements

Tardigrade Admin · Accepted Answer

When water leaves the body through perspiration energy content of molecules remained in body decreases, therefore temperature also decreases. Thus, perspiration from human body helps in cooling the body.

Q. Assertion : Perspiration from human body helps in cooling the body. Reason : A thin layer of water on the skin enhances its emissivity.

If both assertion and reason are true and reason is the correct explanation of the assertion

If both assertion and reason are true but reason is not the correct explanation of the assertion

If assertion is true, but reason is false

Both assertion and reason are false statements

When water leaves the body through perspiration energy content of molecules remained in body decreases, therefore temperature also decreases. Thus, perspiration from human body helps in cooling the body.

Q. Assertion : Perspiration from human body helps in cooling the body.
Reason : A thin layer of water on the skin enhances its emissivity.