Question

In glass, light travels with a speed of 2.0 × 10^8 m/s. Light with a frequency of 4.4 × 10^14 Hz moves through the glass. What is the wavelength of the lighta. 4.5 x 10^-7mb. 8.8 x 10^22mc. 2.2 x 10^6md. 1.1 x 10^-23m

Answer 1

Given

Light tavels with a speed

`v=2*10^8\text{ m/s}`

Frequency is

`n=4.4*10^(14)\text{ Hz}`

To find

What is the wavelength of the light?

Step-by-step explanation

We know,

`\begin{gathered} v=n\lambda \\ \Rightarrow2*10^8=4.4*10^(14)\lambda \\ \Rightarrow\lambda=4.5*10^(-7)m \end{gathered}`

Conclusion

The wavelength is

`a.\text{ }4.5*10^(-7)m`