Look carefully at the diagrams of each wave.
2 answers:
Answer : Wave B.
Explanation :
Given that, the waves A, B, C, and D each represent a different wave of the electromagnetic spectrum.
The energy of a wave is given by :
Where,
h is the Planck constant
c is the speed of the light
is the wavelength of light.
The wavelength of a wave is defined as the distance between two consecutive crests or troughs.
The energy of the wave is inversely proportional to its wavelength.
So, the wave that is energetic enough to damage living human cells is wave B because its wavelength is small as compared to other waves.
<em>Hence, the correct option is (B) " Wave B because it has the shortest wavelength, and therefore carries the most energy ". </em>
You might be interested in
1) The wavelength of the radiation emitted by the human skin is
the frequency of the radiation is related to the wavelength by
where
is the speed of light. Plugging numbers into the formula, we find the frequency of the radiation:
2) The frequency of this radiation is 313 GHz, and its wavelength
. If we look at the table of the electromagnetic spectrum
https://en.wikipedia.org/wiki/Electromagnetic_spectrum
We see that we are in the range of visible light (in particular, in the infrared range).
Therefore, the correct answer is <span>2. visible light .</span>
the frequency of the radiation is related to the wavelength by
where
2) The frequency of this radiation is 313 GHz, and its wavelength
https://en.wikipedia.org/wiki/Electromagnetic_spectrum
We see that we are in the range of visible light (in particular, in the infrared range).
Therefore, the correct answer is <span>2. visible light .</span>