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Phenomenon of resonance
At resonance, rapid transfer of energy takes place resulting louder sound (booming sound). If two bodies having same natural frequency is placed side by side and if one of them is made to vibrate the other will automatically begin to vibrate. This effect is called resonance.Arrange two hollow sound boxes opened at one end such that their open ends face each other. Mount two tuning forks A and B of the same frequency on them as shown in the figure.
If one of the forks A is set into vibration, the other fork B also begins to vibrate and a loud sound is heard due to resonance.
a) Explain what is meant by the term "Heat Energy" b) An Aluminium bar 0.5m long, initially at 20° C is heated until its temperature rises by 50 0 C. Determine the change in l
For the magnetic circuit shown in Figure find the current I in the coil needed to produce a flux of 0.45mWb in the air gap. The silicon iron magnetic circuit has a uniform cros
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discussion
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sensitivity of moving coil galvanometer can be increased by decreasing?
A skydiver falls d1 = 495 meters in t1 = 22 s before opening his parachute. After the chute opens, he falls an additional d2 = 470 meters in t2 = 56.5 s. (a) Write an expression t
A 42.0-kg skateboarder travelling at 1.50 m/s hits a wall and bounces off of it. If the magnitude of the impulse is 150.0 kg·m/s. Calculate the final velocity of the skateb
What are the branches of physics? The basic branches of physics are a) Classical mechanics b) Electromagnetism (including optics), c) Relativity, d) Thermodynamics,
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