Question

Calculate the frequency of visible light having wavelength 3000A travelling in vacuum.the reason​

Answer 1

Answer:

10^15

Explanation

(wavelength) X (frequency)=speed of light

frequency=(3X10^8)/(3000X10^-10)  (1A=10^-10)

= 10^15

Answer 2

Answer:

v=nu.lambda

nu =v/lambda

3×10^8/3×10^3

so frequency=10^5