Photoelectric EffectHard
Question
The number of photons emitted in one second by a 100 watt red light source, assuming for simplicity the average wavelength for each photon is 694nm, is
Options
A.3.49 × 1020
B.4.49 × 1020
C.3.49 × 1018
D.4.49 × 1018
More Photoelectric Effect Questions
Minimum wavelength of X-ray is 2, then potential difference between anode and cathode is :...A small particle of mass 10-13 kg and velocity 10 cm/s then associated wavelength will be :...If a nucleus x emits one α particle and one β (negative β) particle in succession, then the daughter nucl...In old age artierise carring blood in the human body become narrow resulting in an in crease in the blood pressure. this...When X-rays tube is operated at V0 voltage, it produces Kα X-ray of wavelength l. Now voltage is made then waveleng...