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![[Post New]](/templates/default/images/icon_minipost_new.gif) 4 May 2008 00:41:12 IST
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sum 1 plz help me owt with sonometer...................n also q.no33 HC verma chp.optics
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5 May 2008 17:12:10 IST
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HAI
Sonometers
A Sonometer is a device for demonstrating the relationship between the frequency of the sound produced by a plucked string, and the tension, length and mass per unit length of the string. These relationships are usually called Mersenne's laws after Marin Mersenne (1588-1648), who investigated and codified them. For small amplitude vibration, the frequency is proportional to:
a. the square root of the tension of the string,
b. the reciprocal of the square root of the linear density of the string,
c. the reciprocal of the length of the string.
The usual sonometer is horizontal, like the one below at Kenyon College, and the tension is supplied by the weight of the masses hung on the ends of the wires after they pass over the pulleys. This arrangement has the defect that the strings and bridge cannot be seen by the class.
The vertical sonometer at DePauw University is upright, and tipped back about 3° from the vertical.
The differential sonometer was invented by the French acoustical apparatus manufacturer, Marloye, ca. 1840. This has two strings, which may be used to illustrate beats if the two strings have almost the same frequency. If one string has twice the frequency of the other, octaves may be demonstrated. It is in the apparatus collection of Kenyon College in Gambier, Ohio.
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It doesn't work to leap a twenty-foot chasm in two ten-foot jumps.
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5 May 2008 17:13:12 IST
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PLZ RATE ME
PLEASE!
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It doesn't work to leap a twenty-foot chasm in two ten-foot jumps.
There are three kinds of people; those that make things happen, those that watch things happen and those who don't know what's happening.
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6 May 2008 11:13:21 IST
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k thnx buddy but i dunno how 2 rate u!!!!!!!!plz tel me then ill certainly rateu full..............
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