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Properties of light:
The wavefronts can be of different shapes depending on the size and shape of light source and the distance from it. Huygens' principle states that every point on a wavefront behaves as the source of small secondary wavelets which spread out in all directions with a velocity equal to the velocity of light. The new wavefront is then found by constructing a surface of envelope tangential to the secondary wavelets.
Applying Huygens' principle, the phenomenon of reflection and refraction could be explained. The velocity of water waves depend on the depth of the water. The principle of superposition of waves states that when two or more waves travel through the same portion of a medium simultaneously, the resultant displacement at any point is the vector sum of the displacements due to the individual waves.
Q. Collector current I c =20 mA and base current I b = 50 A. Find current gain β of a transistor. β = I C / I B = 20 X 10 -3 / 50 X 10 -6 = 400
when a body is thrown upwards, its velocity becomes zero at the highest point. what will be its acceleration at this point?
Biasing: The application of electric potential to semiconductor diode is known as Biasing.
Consider the 2D shape below. Draw a possible configuration of nodes and cells (at least 15) that could be used to solve for the temperature distribution. Provide equations that wou
susceptibility by quink''s method
5 example of Classification and 5 types of Vectors and 3 Dimensional Forces
State Biot-Savart's law. Using this law, derive the expression for the magnetic field because of a current carrying circular loop of radius 'R', at a point which is at a distance '
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An engineer is making an estimate for a home owner. This owner has a small stream (Q = 1.4 cfs, T = 40°F) that is located at an elevation H = 34 ft above the owner's residence. The
Friction is a microscopic constant and so macroscopic level area does not matter. But area would matter if the object we''re putting under study was microscopic, which isn''t in o
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