Question

Energy is neither created nor destroyed but can be changed from one form to another. Then light energy is transformed to which form?

Answer 1

Hint: In order to solve this question, we should know that light is a form of energy which enables us to see the objects and more specifically it’s an electromagnetic wave which travels at the speed of light in free space, here we will discuss about transformation of light energy in to various other forms of energy during specific processes.

Complete step by step solution:
Since, Energy can neither be created nor destroyed is the fundamental law of conservation of energy of our physical universe. Whenever a form of energy gets lost it must be transformed into another form to balance the law of conservation of energy.
Light energy gets transformed in to various other forms of energy in many different processes such as Chemical energy in the process when Plants use sunlight energy and use this energy to perform various chemical processes for their life, when light energy is focussed in to some surface area it gets heated because light energy gets converted in to heat or thermal energy.
Also, In modern experiments such as photoelectric effect, when light energy falls on to the surface of a material it ejects electrons and thus makes the flow of current hence, converting light energy into electrical energy.
Hence, Light energy is transformed into many different forms such as heat, electrical, and chemical energy.

Note:
It should be remembered that, in a single process alone, light energy can be converted in to two more energies such when plants absorb light energy falling into their surface then some part of it is converted into chemical energy as well as surface of plants gets heated a little bit but still these process follows law of conservation of energy in the way such that total initial energy will be equal to that of total final energy.