Some digital cordless phones operate at 2.4 GHz (1 GHz = 10⁹ Hz).What is the energy,in joules,of a single 2.4 GHz photon?

Question

Quizplus · Accepted Answer

The energy of a single photon of frequency f is given by the equation:

E = hf

Where h is Planck's constant and is equal to 6.626 × 10^-34 J*s.

To find the energy of a single 2.4 GHz photon, we can first convert the frequency to Hz:

2.4 GHz = 2.4 × 10^9 Hz

Then we can use the equation:

E = hf = (6.626 × 10^-34 J*s) × (2.4 × 10^9 Hz)

Simplifying this calculation gives:

E = 1.6 × 10^-24 J

Therefore, the energy of a single 2.4 GHz photon is approximately 1.6 × 10^-24 J, which corresponds to choice B.

Some Digital Cordless Phones Operate at 2