Which of the following wavelengths of light has the highest energy?
1. 10 mm
2. 650 nm
3. 10 µm
4. 0.1 nm
5. 10 cm
To determine which of the given wavelengths of light has the highest energy, you need to compare their values.
Energy of light is inversely proportional to wavelength, according to the equation E = hc/λ, where E is the energy, h is Planck's constant, c is the speed of light, and λ is the wavelength.
The higher the energy, the smaller the wavelength. So, we need to find the smallest value among the given wavelengths.
Let's compare the values:
1. 10 mm = 10,000 µm (1 mm = 1,000 µm)
2. 650 nm = 0.65 µm (1 nm = 0.001 µm)
3. 10 µm = 10 µm
4. 0.1 nm = 0.0001 µm
5. 10 cm = 1,000,000 µm (1 cm = 10,000 µm)
From the given values, the smallest wavelength is 0.0001 µm (0.1 nm) in option 4.
Therefore, option 4, 0.1 nm, has the highest energy among the given wavelengths of light.
E = hv
v = c /λ
E=energy
h=plank's Constant
v=velocity
c=speed of light
λ=wavelength
λ increases, E decreases.
I'll let you figure out the correct answer.