A metal ball of mass 0.1 kg is heated upto 500° C and dropped into a vessel of heat capacity 800 JK-1 and containing 0.5 kg water. The initial temperature of water and vessel is 30°C. What is the approximate percentage increment in the temperature of the water? [Take, specific heat capacities of water and metal are respectively 4200 Jkg-1 K-1 and 400 Jkg-1 K-1]

A metal ball of mass 0.1 kg is heated upto 500° C and dropped into a

1.	A metal ball of mass 0.1 kg is heated upto 500° C and dropped into a vessel of heat capacity 800 JK-1 and containing 0.5 kg water. The initial temperature of water and vessel is 30°C. What is the approximate percentage increment in the temperature of the water? [Take, specific heat capacities of water and metal are respectively 4200 Jkg-1 K-1 and 400 Jkg-1 K-1]
A.	25%
B.	15%
C.	30%
D.	20%
Answer» E.