Question

Select the correct term to complete each sentence.

1. If you ___________ the wavelength, the electromagnetic radiation energy will double.
2. The energy of the electromagnetic radiation will_____________ if you halve the wavenumber.
3. When the frequency of the light is doubled, its energy will___________.
a. halve
b. double

Answer 1

Answer: 1. halve

2. halve

3. double

Step-by-step explanation:

The relationship between wavelength and energy of the wave follows the equation:

`E=(hc)/(\lambda)`

E= energy

`\lambda` = wavelength of the wave

h = Planck's constant

c = speed of light

Thus as wavelength and energy have inverse realation, when wavelength will halve , energy will double.

2. The between wavenumber and energy of the wave follows the equation:

`E=h* c* \bar{\\u}`

E= energy

`\bar{\\u}`
`\\ubar` = wavenumber of the wave

h = Planck's constant

c = speed of light

Thus as wavenumber and energy have direct relation, when wavenumber will halve , energy will be halved.

3. The relationship between energy and frequency of the wave follows the equation:

`E=h* \\u`

where

E = energy

h = Planck's constant

`\\u` = frequency of the wave

Thus as frequency and energy have direct realation, when frequency will double , energy will double.