<h1>Albert Einstein&nbsp;</h1> <img src="https://sunyaias-resources.s3.ap-south-1.amazonaws.com/content/4ddf6c9c-3221-11ec-be72-6dfae63711cd.png"><h2> </h2><h2>Context:</h2> <ul><li>He was awarded the Noble prize 100 yrs ago for his explanation of the&nbsp;photoelectric effect.</li></ul> <h2>Albert Einstein:</h2> <ul><li>Albert Einstein was born on 14 March in the year 1879 in Württemberg, Germany. </li></ul> <ul><li>Einstein was a theoretical physicist who discovered and invented major theories of Physics. </li></ul> <ul><li>His works were recognized across the world and in 1921, Einstein won the prestigious Nobel Prize for Physics for his significant work on the photoelectric effect. </li></ul> <ul><li>Some inventions and contributions of Einstein are:</li><li class="ql-indent-1"> Avogadro’s Number</li><li class="ql-indent-1">Quantum Theory of Light</li><li class="ql-indent-1">General Theory of Relativity</li><li class="ql-indent-1">Special Theory of Relativity</li><li class="ql-indent-1">The Photoelectric Effect&nbsp;</li><li class="ql-indent-1">Wave-Particle Duality</li><li class="ql-indent-1">Brownian movement</li><li class="ql-indent-1">the relationship between mass and energy</li><li class="ql-indent-1">Bose-Einstein Condensate, etc</li></ul> <h2>The Photoelectric Effect:</h2> <img src="https://sunyaias-resources.s3.ap-south-1.amazonaws.com/content/4ddf6c9b-3221-11ec-be72-6dfae63711cd.png"> <ul><li>The&nbsp;photoelectric effect&nbsp;is the emission of electrons when electromagnetic radiation, such as light hits a material. Electrons emitted in this manner are called photoelectrons. </li></ul> <ul><li>The phenomenon is studied in condensed matter physics, and solid-state&nbsp;and quantum chemistry&nbsp;to draw inferences about the properties of atoms, molecules, and solids.</li></ul> <ul><li>The effect has been found useful in electronic devices&nbsp;specialized for light detection and precisely timed electron emission.</li></ul>