Question

Pls ans

​Q33. When a block of iron floats in mercury at 0°C, a fraction k1 of its volume is submerged, while at the temperature 60°C, a fraction k2 is seen to be submerged. If the coefficient of volume expansion of iron is γFeand that mercury is γHg, then the ratio k1/k2 can be expressed as
(2001)

(A) 1+60γFe1+60γHg (B) 1-60γFe1+60γHg

(C) 1+60γFe1-60γHg (D) 1+60γHg1+60γFe

Answer 1

because the weight displaced by iron less than his own weight