Alight wave travels at a speed of 3.0 × 108 meters/second. if the wavelength is 7.0 × 10-7 meters, what is the frequency of the wave?

Answer : The frequency of the wave is,

Solution : Given,

Speed of light =

Wavelength of light =

Formula used :

= frequency of light

= wavelength of light

c = speed of light

Now put all the given values in the above formula, we get the frequency of light.

Therefore, the frequency of the wave is,

c

explanation:

i believe the answer is c and this is only worth 10 points you might wanna change it

pe = weightxheight = 2000x1000=2,000,000joules