Light from the Sun reaches us in nearly
It is easier to roll a stone up a sloping road than to lift it vertical upwards because
Which of the following terms is not used in the field of physics?
Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:
The absorption of ink by blotting paper involves:
Planets do not twinkle because
Stars appears to move from east to west because
Rectifiers are used to convert:
Metals are good conductors of electricity because:
Pick out the scalar quantity
Siphon will fail to work if:
Nuclear sizes are expressed in a unit named
Pa(Pascal) is the unit for
Radiocarbon is produced in the atmosphere as a result of