Question

Please help me I can’t figure it out

1. Calculate the wavelength of light with a frequency of 1.89 x 1018 Hz.
a

Answer 1

Answer:

1.92402 kilohertz

Explanation:

hope this helps

Answer 2

Answer:

• From wave equation :

${ \rm{v = f \lambda}}$

• v is velocity, v = 3.0 × 10^8 m/s
• f is frequency
• lambda is the wavelength

${ \rm{3.0 \times {10}^{8} = (1.89 \times {10}^{18}) \times \lambda}} \\ \\ { \rm{ \lambda = \frac{3.0 \times {10}^{8} }{1.89 \times {10}^{18} } }} \\ \\ { \boxed{ \rm{ \: \lambda = 1.587 \times {10}^{ - 10} \: }}}$