abhishekl (anonymous)

thin spherical shell and a thin cylindrical shell have same volume both the shells are filled with water at the same temperature and are exposed to the same atmosphere. initial temp of water is slightly grater than that of surrounding. Then at initial moment

1. Rate of heat radiation from two shells will be same
2. Rate of fall of temperature in both the shells will be same
3. Rate of heat radiation and rate of fall of temperature, both in cylinderical shell are less than those in spherical shell
4. none of these