Question

Ill give a medal and be a fan if I could get help in some questions

The frequency of a given region of the electromagnetic spectrum ranges from 4 × 10^14 to 7.5 × 10^14 Hz. The speed of light is
2.998 × 10^8 m/s. Which waves are found in this region?

A. Microwaves
B. infrared rays
C. visible light
D. ultra violet rays


could you please tell me the answer and tell me why that's the answer I believe its C correct me if I'm wrong

Answer 1

2. The wavelength of a specific photon in the infrared spectrum is
4 × 10^-6 meters. Given that the speed of light is 2.998 × 10^8 m/s, what would be the frequency of this infrared wave?

A. 11.992 * 10^2 Hz
B. 0.79495 * 10^-14 Hz
C. 11.992 * 10^-2 Hz
D. 0.7495 * 10^14 Hz

I believe its D please correct me if I'm wrong

Answer 2

correct

Answer 3

oh both are right? :D

Answer 4

Im Pretty Sure