Question

What is the energy of a photon with a frequency of 2.2 x 1016 Hz? Planck's constant is 6.63 x 10-34 Jos.

O 1.5 x 10-17
8.8 x 10-17
O 1.5 10-16
O 8.8 10-16

Answer 1

C. 1.5 × 10–16 J

Step-by-step explanation:

Answer 2

Answer: 1.5 × 10^-17

Step-by-step explanation:

Given the following :

Frequency(f) = 2.2 × 10^16 Hz

Planck's constant(h) = 6.63 × 10^-34

The energy of a photon 'E' is given as the product of frequency and the planck's constant

E = hf

E = (6.63 × 10^-34) × (2.2 × 10^16)

E = 6.63 × 2.2 × 10^(-34 +16)

E = 14.586 × 10^-18

E = 1.4586 × 10^-17

E = 1.5 × 10-17 (2 S. F)