MEDIUM
7th CBSE
IMPORTANT
Earn 100

Why does a flame always burn upwards?

Important Questions on Heat

EASY
7th CBSE
IMPORTANT
Hot water poured in a stainless steel glass cools faster than the hot water in a plastic glass or ceramic glass. Why does this happen?
EASY
7th CBSE
IMPORTANT
A room heater increases the temperature of a room. Which modes of heat transfer are involved in the process?
MEDIUM
7th CBSE
IMPORTANT
If you had to use a clinical thermometer in a lab, what problem will you encounter?