Answer:
E = 2.4×10⁻¹⁴J
Frequency =0.36×10²⁰ Hz
Explanation:
Given data:
Wavelength of light = 8.22×10⁻¹² m
Frequency of light = ?
Energy of light = ?
Solution:
peed of light = wavelength× frequency
speed of light = 3×10⁸ m/s
Now we will put the values in formula.
3×10⁸ m/s = 8.22×10⁻¹² m × frequency
Frequency = 3×10⁸ m/s / 8.22×10⁻¹² m
Frequency =0.36×10²⁰ s⁻¹
s⁻¹ = Hz
Frequency =0.36×10²⁰ Hz
Energy of light:
Formula:
E = hf
h = planks constant = 6.63×10⁻³⁴ Js
Now we will put the values in formula.
E = 6.63×10⁻³⁴ Js × 0.36×10²⁰s⁻¹
E = 2.4×10⁻¹⁴J
