Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.88 × 1014 hz. the speed of light is 3.00 × 108 m/s. and

The wavelength of blue-light is .

Explanation:

Given data:

The frequency of light is, .

The speed of light is, .

The expression for the frequency of light is,

Here, is the wavelength of light.

Solve by substituting the values as,

Thus, the wavelength of blue-light is .

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430 nm.

Explanation:

The relation of wavelength and frequency is:

Formula used :

where,

= frequency =

= wavelength  = ?

c = speed of light =

Now put all the given values in this formula, we get

Thus the wavelength (in nm) of the blue light emitted by a mercury lamp is 430 nm.

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