Physics
A body moving in a circular path with a constant speed has a

Constant kinetic energy
Constant displacement
Constant acceleration
Constant velocity

ANSWER DOWNLOAD EXAMIANS APP

Physics
On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:

density of mercury is greater than that of water.
cohesion of water is greater than its adhesion with glass.
cohesion of mercury is greater than its adhesion with glass.
mercury is a metal.

ANSWER DOWNLOAD EXAMIANS APP

Physics
Circuit breaker usually operate under

Steady state of short-circuit current
After D. C. component has ceased
Sub-transient state of short-circuit current
Transient state of short-circuit current

ANSWER DOWNLOAD EXAMIANS APP