Light in air of wavelength 500 nm illuminates a soap film that has an index of refraction of 1.3 and air on both sides
What is the minimum thickness of this film that will produce cancellation in the reflected light when the light is incident normally on the film?
96 nm
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A wing of a particular airplane is 10 m wide. During flight conditions air at 80 kPa and - 10ºC passes around the wing at 400 m/s. If the wing surface temperature is 80ºC determine: a) how much of the boundary layer is turbulent if the critical Reynolds number is taken as 5 x 10^5, b) the average convective heat transfer coefficient, and c) the heat transfer per unit area.
A simple beam AB with an overhang BC is loaded as shown in the figure. The bending moment at the midspan of AB is approximately:
(A) 8 kN?m
(B) 12 kN?m
(C) 17 kN?m
(D) 21 kN?m
A solenoid is available that has 100 loops in 2 cm of length with a supermalloy core, and the maximum current for the solenoid wire is 1A. What flux density is possible for this solenoid in air?
What will be an ideal response?
Which of the following stars is a part of the Solar System?
A) The Sun B) Proxima Centauri C) Sirius D) The Pistol Star