Light with wavelength of 6000 A0 units has a frequency

Q. Light with wavelength of 6000 A0 units has a frequency

A.            5 x 10¹⁷ Hz

B.            5 x 10¹⁶ Hz

C.            5 x 10¹⁵ Hz

D.            5 x 10¹⁴ Hz

Answer: 5 x 10¹⁴ Hz