Physics
On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because :

Plastics have a lower density than metals
Metals are good conductors of heat
Metals have higher thermal capacity than plastics
Plastics have a higher thermal conductivity than metals

ANSWER DOWNLOAD EXAMIANS APP

Physics
The sensation of weightlessness in a spacecraft in an orbit is due to the

Fact that spacecraft in the orbit has no energy
Absence of gravity outside
Acceleration in the orbit which is equal to the acceleration due to gravity outside
Presence of gravity outside but not inside the spacecraft

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Physics