Question

Assertion: A beaker is completely filled with water at 4°C. It will overflow both where heated or cooled. 

Reason: There is expansion of water below and above 4°C.

(a) If both assertion and reason are true and the reason is the correct explanation of the reason. 

(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) If the assertion and reason both are false. 

(e) If assertion is false but reason is true.

Answer 1

Correct option: (a)

Explanation:

Water has maximum density at 4°C

Thus above & below 4°C, density will decreases.

As density ∝ [1 / (volume)], hence volume will increases and water overflows