# Physics

posted by .

Ok so I think I have this correct, but I'm not sure.

The question is: what is the frequency of green light, which has a wavelength of 4.90 x 10 ^-7 m?

Since all electromagnetic waves travel at
3.00 x 10^8 m/s (c), and
c= wavelength x frequency,

The problem is:
(3.00 x 10^8) / (4.90 x 10^-7) = frequency

Right?

I got .61 x 10^15 as a result.

Is this right?

• Physics -

Yes, but I would put it in scientific notation 6.1 x 10^14 hz

• Physics -

In addition to putting it in scientific notation as Bob Pursley suggested, I would add another place. You have three significant figures in 4.90 and 3 s.f. in 3.00; therefore, you are allowed 3 in the answer or 6.12 x 10^14 Hz.

## Similar Questions

1. ### physics

the relationship bwtween frequency, wavelength, and speed holds for light waves because all forms of electromagnetic radiation travel at a single speed in a vaccum. is this true?
2. ### Astronomy

Based on what you learned about light, select all of the correct statements from the following list. The only type of electromagnetic radiation that is actually considered light is visible light. High frequency photons carry more energy …
3. ### Physics

Radio waves are electromagnetic waves that travel at a speed of 3.00 108 m/s, the speed of light. An AM radio station has an assigned frequency of 1350 kHz, which means that the radio waves broadcast by the station are at this frequency. …
4. ### PHYSICS

Light waves are electromagnetic waves that travel at 3.00 108 m/s. The eye is most sensitive to light having a wavelength of 5.50 10-7 m. (a) Find the frequency of this light wave. __________ Hz (b) Find its period. _______________ …
5. ### Science

Im sorry i am totally stumped What is the main difference between mechanical and electromagnetic waves A. Mechanical waves involve the transfer of energy; electromagnetic waves do not B. Mechanical waves require a medium to travel …
6. ### science

1. What is the main difference between mechanical and electromagnetic waves A. Mechanical waves involve transfer of energy; electromagnetic waves do not. B. Mechanical waves require a medium to travel in; electromagnetic waves do not. …
7. ### Science

What is the main difference between mechanical and electromagnetic waves?
8. ### Science

1. What is the main difference between mechanical and electromagnetic waves?
9. ### Science

1. What is the main difference between mechanical and electromagnetic waves?
10. ### Science

1. What is the main difference between mechanical and electromagnetic waves?

More Similar Questions