Answer:
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Explanation:
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Answer:
The correct option is (c) "it bounces the light towards a focal point"
Explanation:
There are two types of spherical mirrors i.e. concave and convex.
A concave mirror is a type of spherical mirror that is curved inwards. For this type of mirror the rays of light are bounced back and converge to the focal point of the mirror.
So, the correct option is (c).
Answer:
In the parallel plate capacitor
The capacitance will decrease between the plates.
The voltage will increase between the plates.
Explanation:
When the distance between the plates increase, then the voltage also increases as it varies with the separation of plates. However the capacitance will decrease upon increasing the distance. As the capacitance depends upon the electric field between the plates. Field is stronger when the plates are closer so capacitance increase. Field will be weaker upon increasing the distance and hence the capacitance decreases.
The thermal energy of an object is the energy contained in the motion and vibration of its molecules. Thermal energy is measured through temperature. The energy contained in the small motions of the object's molecules can be broken up into a combination of microscopic kinetic energy and potential energy.
= initial velocity of the electron =
= final velocity of the electron =
= initial position of the electron from the proton = very distant =
= mass of an electron =
= magnitude of charge on an electron =
= magnitude of charge on an proton =
= Boltzmann constant =
= final position of the electron from the proton
= change in kinetic energy of the electron
= work done by the electrostatic force
= electrostatic force
= instantaneous distance of the electron from the proton