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Give reason that ultrasonics not be produced by passing high frequency alternating current by a loud speaker
At these high frequencies, inductive reactance is so high where is no current flows throughout the coil of the loud speaker and therefore ultrasonic waves cannot be produced.
Atwood's machine A weight-and-pulley system is used to measure the acceleration because of gravity at Earth's surface through measuring the net acceleration of a set of weight
What is Attenuation? Attenuation: Attenuation is a reduction within the amplitude and intensity of a signal. This is a significant property into optical communications. This
Photons and gravity : It is observed that light is affected by gravity. We can recognize the gravitational behaviour of light from the fact that although a photon has zero rest mas
Cannon of mass 5m (having a shell of mass m) is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horizontal at a velocity u relative to
what is alternating current
A 10L helium balloon at a pressure of 2 bar at 27C. some O 2 is now in balloon and final volume is made 30L. the pressure also fell to 1 bar at same temperature. the partial press
Ask questionwhat r the axis&planes in human body.? In nature or in daily life is it applied or happening? #Minimum 100 words accepted#
Q. Does sunlight reflected off a mirror raise the temperature of the sun-rays? Answer:- A standard planar mirror will not raise the energy contained in the rays that refle
if a body contain n1 electron and n2 proton what is the total charge on the body?
Relative velocity of a boat in a river flowing at a given velocity horizontally Ans) assume the river to be stopped and measure relative velocity of boat and find angle.
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