Answer: The correct answer is "The energy of the electrons emitted increases".
Explanation:
Photoelectric effect: It is the phenomenon in which the light of the particular frequency incidents on the surface of the metal then there is an emission of the electrons.
In this phenomenon, the saturation current increases with the increase in the intensity of the light.
The rate of flow of electrons constitutes the current. If the intensity of light increases then the rate of the electrons also increases.
In the given problem, When light is incident on a metal surface, it emits electrons. The rate of the electrons emitted increases.
Therefore, the correct option is (C).
Because the less dense magma is lighter so it floats to the top.
A. D<span>ark objects are required to absorb energy</span>
Answer:
Kinetic energy would increase by a factor of 4 where as momentum would increase by a factor of 2.
Explanation:
Kinetic Energy is given by 0.5*mass*velocity^2. Kinetic Energy is proportional to Velocity^2.
Momentum is given by mass*velocity. Momentum is proportional to Velocity.
If the velocity of an object is doubled, Kinetic energy would increase by a factor of 2^2 i.e 4 times. Momentum would increase by a factor of 2.