Chemistry, asked by gursimransandhu9099, 7 months ago

Neon gas is generally used in the sign boards. If it emits strongly at 616 nm, then frequency of emission is fast anser in formula equation plz​

Answers

Answered by Anonymous
7

Answer:

 λ = wavelength = 616 nm

frequency of an electro magnetic radiation = f = c / λ

     f = 2.98 * 10⁸ / 616 * 10⁻⁹  =  4.837  * 10¹⁴ Hz

distance = 2.98 * 10⁸ m/sec * 30 sec = 8.94  * 10⁹  meters

     = 8,940,000 km

energy in one photon or quantum :  E = h f = 6.626 * 10⁻³⁴ * 4.837 * 10¹⁴

       =  3.205 * 10⁻¹⁹ J  = 2 eV

number of quanta  = energy / energy per quantum  = 2 J / 3.205 * 10⁻¹⁹

     =  6.239 * 10¹⁸     number of photons or quanta

▨▦▩Hope it's helpful ▩▨▩

Similar questions