Answer:
λ = 3.1824 10-25 m
Explanation:
To release the electron from the power well the absorbed photon electro must be greater than or equal to the energy of the electron in the power well
The photon energy is E_photon = 0.625 J
The speed of light is
c = λ f
Let's use Planck's equation
E = h f
We substitute
E = h c / λ
λ = h c / E
λ = 6.63 10-34 3 108 / 0.625
λ = 3.1824 10-25 m
<span>The force that an object feels in an electric field is the magnitude of the electric field E times the charge on the object Q.
We know that the magnitude of the charge of an electron is 1.6 x 10^{-19} C
F = E x Q
E = F / Q
E = (3.5 x 10^{-16} N) / (1.6 x 10^{-19} C)
E = 2.19 x 10^3 N/C
The magnitude of the electric field at the location of the electron is 2.19 x 10^3 N/C</span>
What’s something goes up but never comes down?
Answer:
b
Explanation:
you doubled the frequency, and the others would be affected by energy distribution and surface area or area of effect.
<u>Answer:</u>
Option (D)
Clockwise
<u>Explanation:</u>
Using Lenz's Law the current is induced in such a direction so that the magnetic field created due to the current induced opposes the increasing external magnetic field. For this case,when the field is increasing the magnetic flux increases and current is induced in clockwise direction (by lenz law as the induced field due to induced current has influence in opposite direction,thereby it reduces flux).
If the field is being decreasing,current would have been induced counter-clockwise so as to oppose the decreasing flux(as then the induced flux would be in same direction.)
