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An explorer is riding his camel in the desert. Up ahead he sees what appears to be a pool of water.
He can tell if it is a real pool of water or a mirage by putting on his polarized sun glasses because:
a) The mirage is polarized and reflections from the water are not
b) Reflections from water are polarized while the mirage is not
c) Neither are polarized so one will not be able to discern a difference
d) Both are polarized so one will not be able to discern a difference
Ans- Reflections from water are polarized while the mirage s not
Determine the divergence of the vector field at (1, 1, 0).
A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the left of vertical. Which of the following answers could de
is voltage source have infinite internal resistance
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Inductors: Coils which are used for their opposition to current change in a circuit are known as inductors or chokes. CONSTRUCTION Inductors with an air core have small
In a Newton's ring experiment with air film the diameter of nth and (n - 5)th dark rings are 12.2 mm and 8.1 mm respectively. Evaluate the diameter of (n + 5)th dark ring
#questiwhy test charge kept unit ad positive ?on..
Length contraction (relativity of length) is the length of a body moving with a relativistic velocity v = c relative to an observer is contracted by a factor in the direction of m
I think it is same as the apex angle of the prism or the angle of the prism. since it decides the angle of deviation as i+e=D+A(angle of the prism),D=deviation.
A 985-kg car travelling south at 29.0 m/s hits a truck travelling 18.0 m/s west, as shown in the figure below. After the collision, the vehicles stick together and travel with
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