A spectrum of lead shows an intense line of 283.3. Calculate the frequency

Answer 1

We can use the formula:

c = λν

where c is the speed of light (h = 2.998 x 10^8 m/s), λ is the wavelength in meters, and ν is the frequency in Hertz.

First, we need to convert the wavelength from nanometers (nm) to meters:

λ = 283.3 nm = 283.3 x 10^-9 m

Now we can plug in the values and solve for ν:

c = λν

ν = c/λ

ν = (2.998 x 10^8 m/s) / (283.3 x 10^-9 m)

ν = 1.06 x 10^15 Hz

Therefore, the frequency of the intense line of lead is 1.06 x 10^15 Hz.