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An echo is easily the retransmission of speaker's own voice caused by reflection at a distance surface.
If there is a sound reflector at a distance d from host, then the time interval among original source and it's echo at the site of source will be
The threshold of hearing is 10 -12 watts/m 2 or 0 dB. How many times more intense than the threshold of hearing is 70dB and what is the actual intensity (in watts/m 2 ) at the 7
The weightless truss shown below supports loads at point A & B and is fastened to the supports at C & E. The value of F1 in kN is given in P13 and the value of F2 in kN is given i
SPEED: The distance covered by a body in unit time is known as speed. It is represented by V.
A string of cross section 2cm2 is doubled in length by the application of a longitudinal force 2*10 5 dynes. The youngs modulus is
1. You now pass the signal + interference through a 2-section 1.0 kHz low pass filter with a rolloff of 40 dB/decade. Make a plot of the waveform of the filter output over the time
Factors which are affect velocity of sound in gaseous medium is (1) Effect of density (2) Effect of pressure (3) Effect of temperature : (4) Effect of humidity
Construction and working of michelson interferometer,.how will you use it to measure the wavelength of a monochromatic light.
2. Surface Crystallography and Epitaxy Fe thin films are grown on a single-crystal Al (100) substrate surface. The films grow with no dislocations (if they are thin enough) which
what is solid states physics
Example of like and unlike parallel forces
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