engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Heat Transfer Radiation Laws of Radiation
Which of the following law states that "Illumination at any point on a surface is directly proportional to the cosine of the angle between the normal at that point and the direction of luminous flux".
1
Bunsen's law
2
Plank's law
3
Faraday's law
4
Lambert's law