Answer: silicon Si, Germanium GE
Explanation:
Wavelength of the light is 2.9 × 10⁻⁷ m.
<u>Explanation:</u>
Planck - Einstein equation shows the relationship between the energy of a photon and its frequency, and they are directly proportional to each other and it is given by the equation as E = hν,
where E is the energy of the photon
h is the Planck's constant = 6.626 × 10⁻³⁴ J s
ν is the frequency
From the above equation, we can find the frequency by rearranging the equation as,
ν =
= 
Now the frequency and the wavelength are in inverse relationship with each other.
ν × λ = c
It can be rearranged to get λ as,
λ = c / ν
= 
So wavelength is 2.9 × 10⁻⁷ m.
Answer:
D. Positively charged particles
Explanation:
Negatively charged particles are attracted to positively charged particles and repelled against negatively charged particles
Answer:
The First choice is correct
Explanation:
That is the closest example of what is shown
Chlorine is the correct answer so A