Answer:
Explanation:
Frequency( ν ) 4667 x 10³ Hz = 4.667 x 10⁶ Hz
Energy of one photon = hν [ h is plank's constant ]
= 6.6 x 10⁻³⁴ x 4.667 x 10⁶ = 30.8 x 10⁻²⁸ J
Power = 84 x 10³ J/s
No of photons emitted = Power / energy of one photon
= 84 x 10³ / 30.8 x 10⁻²⁸ =2.727 x 10³¹ per second .
