What do radio waves and microwaves have in common?
2 answers:
Answer: C) Both are located to the right of visible light on the spectrum
Explanation:
BECAUSE....
Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They travel with the speed of light.
Both radio and microwaves are electromagnetic waves which are adjacent to each other in electromagnetic spectrum towards lower frequency and higher wavelength.
The relationship between wavelength and frequency of the wave follows the equation:
where,
v = frequency of the wave
c = speed of light
= wavelength of the wave
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so, 444 eggs would have been released in 37yrs
<u>Answer:</u> The number of photons are
<u>Explanation:</u>
We are given:
Wavelength of microwave = (Conversion factor:
)
- To calculate the energy of one photon, we use Planck's equation, which is:
where,
h = Planck's constant =
c = speed of light =
= wavelength = 0.122 m
Putting values in above equation, we get:
Now, calculating the energy of the photon with 88.3 % efficiency, we get:
- To calculate the mass of water, we use the equation:
Density of water = 1 g/mL
Volume of water = 165 mL
Putting values in above equation, we get:
- To calculate the amount of energy of photons to raise the temperature from 23°C to 100°C, we use the equation:
where,
m = mass of water = 165 g
c = specific heat capacity of water = 4.184 J/g.°C
= change in temperature =
Putting values in above equation, we get:
This energy is the amount of energy for 'n' number of photons.
- To calculate the number of photons, we divide the total energy by energy of one photon, we get:
q = 53127.72 J
E =
Putting values in above equation, we get:
Hence, the number of photons are