Question

Light energy is converted into electrical energy in
(a) Photosynthesis
(b) Photoelectric cell
(c) Photography
(d) Photolysis

Answer 1

Hint: In this question think of the process of how sunlight is directly converted into electrical energy. Sunlight resembles light energy so that same process is the answer to this problem. This approach will help to get the answer.

Complete Step-by-Step solution:
As we know solar cells or PV cells (photovoltaic) convert sunlight directly into electrical energy by converting photons of light particles into negatively charged electrons particles.
When light hits an atom, it is absorbed by one of the electrons (which is in valence state presently) around the atom boosting the energy of the electron and electrons go to the conduction state from the valence state and conduct electricity.
It consists of two layers one called as N-layer and other called as P-layer.
Photo-voltaic cells are made up of semiconductors such as silicon mixed with other materials.
Sometimes it is called a photoelectric cell.
So this is the required answer.
Hence option (B) is the correct answer.

Note – A photoelectric cell is also called sometimes a phototube, electron tube or electric eye. It is an electronic device that is sensitive to incident radiation, it has special sensitivity to light varying in the range of visible region. This device helps to generate or control output of electric current as well.