JEE Main 2021 · PhysicsNumerical answerNumerical valueMediumCalculation
JEE Main 17 March 2021, Shift 1, Physics Q22
Question 22 of 90 in this shift, Physics question 22 of 30, Section B.
If N average force is exerted by a light wave on a non - reflecting surface of 30 cm area during 40 minutes of time span, the energy flux of light just before it falls on the surface is __________ W/cm. (Round off to the Nearest Integer)
(Assume complete absorption and normal incidence conditions are there)
Official answer
25
NTA final key.
- Chapter
- Electromagnetic Waves
- Topic
- No close match in our taxonomy
- Idea tested
- No close match in our taxonomy