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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
The rate of change of angular velocity with related to time is known as angular acceleration.
Q. If a single force acts on an object, the object accelerates. yse it is definately true. Newton's second law.
Necessity Of A Starter For D.C Motors When motor is at rest, then N=0 and due to Eb is directly proportional to N, so At begin E b = zero Thus armature current at t
1. An ionization chamber is used on Tuesday (T=22°C, P=760mmHg) and then on Wednesday (T=25°C, P=740 mmHg) to monitor the output from an x-ray tube. If the output from the tube is
The boom DF and the column DE have a uniform weight of P55 N/m and the chain and load at F is P56 kN. Determine the Shear Force in kN rounded to 1 DP and the Bending Moment in kN.
The magnetic field of Earth resembles the field of a bar magnet. The north pole of a compass needle, used for navigation, generally points toward the geographic north pole.
The voltage drops across two components when connected in series across an a.c. supply are v1 =150sin 314.2t and v2 =90sin(314.2t -∏/5) volts respectively. Determine (a) the v
Moderation: In a nuclear reactor, the fast moving neutron has to be slowed down by the use of Boron rods before they are able to cause further fission. The process of slowing d
Show that the displacement current flowing between the two plaes of the capacitor is similar to the conduction current utilized in charging the capacitor.
It is the electric dipole moment induced in a system, such as an atom or molecule, by an electric field of unit strength.
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