Answer is Option C Lumen.It is also known as luminous energy.
Explanation:
When a charged particle describes a circular path in a uniform magnetic field, the charged particle experiences a magnetic force towards the center of circular path, according to Fleming's left hand rule. Therefore the magnetic force and velocity (tangent to circular path) are perpendicular to each other during the circular motion. As the direction of displacement, is the direction of velocity, hence force and displacement are perpendicular to each other.
Therefore work done by magnetic force,
W=Fscos90=0
Explanation:
25.61 cm * 1 Gm
100000000000 cm = 2.561e-10 Gm
Answer:
C. cools adiabatically as it sinks to a lower elevation
Explanation:
Condensation is the phenomenon where there is a change of the state of matter from gas phase to liquid phase. Vaporization is the reverse of condensation. If a process occurs without the transfer of heat and mass of a thermodynamic system with its surroundings then it is known as an adiabatic process.
Moist air consists of water in gaseous state, so when it is cooled without any exchange of mass or heat there is change of phase.
