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What do you understand by reverberation? Who is the founder of architectural acoustics?
What is Newton's formula for velocity of sound in a gas? How is it corrected by Laplace?
If the particles of a medium vibrate in the direction of wave motion the wave is known as longitudinal. a) It goes in the form of compression and rarefaction. b) A
What is the means in which light waves travel? Ans: Light is the only type of wave that doesn't require a medium. Confirmation that light will travel through vacuum is the
The differential equation of motion of freely oscillating body is given by 2 d 2 x/dt 2 + 8π 2 x = 0. Evaluate the natural frequency of the body?
A force of 2.5kN is needed to lift a load. How much work is done if the load is lifted by 500cm? An electromagnet exerts a force of 12N and moves a soft iron armature by a dist
To test the deflection of the uniform 400N/m beam the 600N boy exerts a pull of P42N on the rope. The distance between the rope and the support at A is P43 metres. Assume the pull
Maximum power transfer: Every source of EMF has internal resistance. If it is required to develop the maximum possible amount of power in an external load, then the load resis
A bakelite capacitor is to be constructed to have a capacitance of 0.04µF and to have a steady workingpotential of 1kVmaximum. Allowing a safe value of field stress of 25MV/m find
A cue ball has a mass of 0.160 kg is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.40 Ns to the ball. He ball the
What is the path of the magnetic field at a point due east of a straight wire carrying a current due north?
What is Ancient view Ancient view: objects tend to stay if they are in motion; force is needed to keep something moving. This was a natural thing to believe in because we see
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