What is the frequency of a photon with a wavelength of 3.75×10^-7

Frequency = 0.8×10¹⁵ Hz

Explanation:

Given data:

Frequency of photon = ?

Wavelength of photon = 3.75 ×10⁻⁷ m

Solution:

Formula:

Speed of photon = wavelength × frequency

Frequency = speed of photon / wavelength

Now we will put the values in formula.

Frequency = 3 ×10⁸ m/s / 3.75 ×10⁻⁷ m

Frequency = 0.8×10¹⁵ s⁻¹

s⁻¹ = Hz

Frequency = 0.8×10¹⁵ Hz

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-