Atomic StructureHard
Question
If a source of power 4 kW produces 1020 photons/second, the radiation belong to a part of the spectrum called
Options
A.X-rays
B.ultraviolet rays
C.microwaves
D.γ -rays
Solution
4 × 103 = 1020 × hf

f = 6.03 × 1016 Hz

f = 6.03 × 1016 Hz
Create a free account to view solution
View Solution FreeMore Atomic Structure Questions
A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is...The half life of a radioactive substance against α - decay is 1.2 × 107 s. What is the decay rate for 4.0 ...Which one of the following is not dependent on the intensity photon in a photo-electric experiment?...When 3Li7 nuclei are bombarded by protons, and the resultant nuclei are 4Be8, the emitted particles will be...A car is moving horizontally with a velocity v. A shell is fired upward with velocity u from the car. Find the horizonta...