defence exam Army Havildar SAC Mock Test Series 2025 General Science Chemistry Chemistry in Everyday Life
After a hot sunny day, people sprinkle water on the roof or open ground because:
1
large latent heat of vaporisation of water helps to heat the cold surface
2
large latent heat of vaporisation of water does not help to cool the hot surface
3
large latent heat of vaporisation of water helps to cool the hot surface
4
less latent heat of vaporisation of water helps to cool the hot surface