Answer:
214.3 x 10⁻⁹ m or 214.3 nm
Explanation:
= slit separation in the experiment = 3.00 x 10⁻⁵ m
= screen distance from the slits = 2.00 m
= Order of the bright fringe = 7
λ = Wavelength of the light
= distance of the bright fringe from the central bright fringe = 10 cm = 0.10 m
Position of the bright fringe is given as
λ = 214.3 x 10⁻⁹ m
λ = 214.3 nm
<span>The bright, visible surface of the Sun is called corona. The outermost layer of the Sun's atmosphere is called chromosphere.</span>
Answer:
2.7 J
Explanation:
The energy of one photon is given by
where
h is the Planck constant
f is the frequency
For the photons in this problem,
So the energy of one photon is
The number of photons contained in 1.0 mol is
(Avogadro number)
So the total energy of photons contained in 1.0 mol is
You would have done 240 joules of work on the box.
Work = (force) x (distance)
= (60 newtons) x (4 meters)
= 240 joules .