Light waves travel at 3 × 10 8 m/s. If the light wave has a particular wavelength of 400 nm (400 × 10 –9 m), calculate its frequency.

Explanation:

Given that,

The wavelength of light,

The speed of light,

We need to find the frequency of light. We know that,

Where

f is the frequency

So,

So, the frequency of light is .

the answer would be c. motion and direction

i hope this : )

the area between the graph and the t axis