Question

Calculate the frequency of light with 1.10x10 to the -13th power J

of energy.
a. Formula:
b. Work:
C. Answer:​

Answer 1

1.66 × 10²¹ Hz

Step-by-step explanation:

The formula for energy of light is;

E = hf , h is the plank's constant and f is the frequency

The plank's constant is 6.626 × 10⁻³⁴ J-s

We are given energy as 1.10 × 10⁻¹³ Joules

From the formula;

`f=(E)/(h)`

f = (1.10 × 10⁻¹³J) ÷ (6.626 × 10⁻³⁴ J-s)

= 1.66 × 10²¹ Hz

The frequency of light will be 1.66 × 10²¹ Hz

Answer 2

f = 0.166 × 10²¹ s⁻¹

Step-by-step explanation:

Given data:

Energy of photon = 1.10 × 10⁻¹³J

Frequency = ?

Solution:

Formula

E = h. f

h = planck's constant = 6.63 × 10⁻³⁴ Kg.m²/s

Now we will put the values in equation

f = E/h

Kg.m²/s² = j

f = 1.10 × 10⁻¹³J Kg.m²/s² / 6.63 × 10⁻³⁴ Kg.m²/s

f = 0.166 × 10²¹ s⁻¹