Question

The speed of light is 3 x 10^8 m/s. calculate the wavelength in nm with the frequency 4.91 x 10^14 Hz of Orange light. ​

Answer 1

Answer:

lambda= 600 nm

Explanation:

c= f x lambda

c=speed of light= 3 x 10⁸m/s

f= frequency= 4.91 x 10¹⁴

we can approximate f as 5 x 10¹⁴

lambda= c/f

= 3 x 10⁸/ 5 x 10¹⁴

= 0.6 x 10-⁶ m

= 6 x 10-⁷ m

= 600 x 10-⁹ m

= 600 nm