Answer:
200 nm
Explanation:
Refractive index of gasoline = 1.4
Wavelength = 560 nm
t = Thickness of film
m = Order = 1
Wavelength is given by
We have the relation
The thickness of the film is 200 nm
A source generates 40 waves per sec. if the wavelength is 8 cm. calculate the time waves takes to reach a wall 120m from the sou
1 answer:
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Answer:
Ae/A* = 1.115
Explanation:
Let the reservoir pressure be
Let the exit pressure be
Ratio of reservoir pressure and exit pressure
= 3.182
For the above value of pressure ratio
Obtain the area ratio from the isentropic flow table
Ae/A* = 1.115
The value of pressure ratio is Ae/A* = 1.115