Question

The wave number of light emmitted by a certain a source is 2000000 meter.the wavelenght of this light​

Answer 1

Answer:

by using formula

waveno=1/£

Answer 2

⠀⠀ ⠀ ⠀⠀ $\huge{\tt{\red{❥}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}$