Answer:
A person on top of a hill
Explanation:
Answer:
28.6 ohm
Explanation:
there is a 3rd resistor in series. voltage drop across the resistors will be equal to 60v
7*.2+7*.2 +.2x = 60
2.8+.2x = 60
.2x = 57.2
x = 28.6
The wavelength of the emitted photon is(
)= 690nm
<h3>How can we calculate the wavelength of the emitted photon?</h3>
To calculate the wavelength of the photon we are using the formula,

Or,
We are given here,
= The energy difference between the two levels = 1. 8 ev=
C.
h= Planck constant =
Js.
c= speed of light =
m/s.
We have to find the wavelength of the emitted photon =
m.
Therefore, we substitute the known parameters in the above equation, we can find that,

Or,
Or,
m
Or,
=690 nm.
From the above calculation we can conclude that the wavelength of the emitted photon is 690nm.
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