Calculate the energy of a photon having a wavelength in thefollowing ranges.
(a) microwave, with λ = 50.00 cm
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(b) visible, with λ = 500 nm
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(c) x-ray, with λ = 0.50 nm
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The energy of a photon is given by the following formula:

(1)

Where:

is the Planck constant

is the frequency

Now, the frequency has an inverse relation with the wavelength :

(2)

Where is the speed of light in vacuum

Substituting (2) in (1):

(3)

Knowing this, let's begin with the answers:

For

For

For

As we can see, as the wavelength decreases, the energy increases.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

answer: option c.

explanation: