villatoroo84502
04.06.2020 •
Physics
Light of wavelength 633nm passes through a single slit of width 1.50*10^-5 m. At what angle does the second interference minimum (m=2) occur? °
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Ответ:
The second interference is minimum at angle 5 degree approximately
Explanation:
Given that the
Wavelength (λ) = 633nm
Width d = 1.5 × 10^-5m
n = 2
The wavelength (λ) of the light passing through a single slit is related to the angle Ø by
dsinØ = n(λ)
Substitutes all the parameters into the above formula
1.5×10^-5 × SinØ = 2 × 633 × 10^-9
Make SinØ the subject of formula
SinØ = 1.266×10^-6/1.5×10^-5
SinØ = 0.0844
Ø = Sin^-1( 0.0844 )
Ø = 4.84 degree.
The second interference is minimum at angle 5 degree approximately
Ответ:
d = 1.65 m
Explanation:
Given that,
The speed of a ball, v = 3 m/s
A ball rolls a level table that is 1.5 m above the floor.
We can find how long the ball is in free fall. We can use the second equation of kinematics as follows :
u is the initial speed in the vertical direction
So,
Now, using the formula of velocity.
So, the landing spot is at 1.65 m from the table.