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Home  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Oscillations

A longitudinal wave of frequency 1000 Hz is travelling in a medium . At a certain point in the medium there is a compression at certain moment . How many milliseconds later would the next rare faction form at this place ?

$(a)\;2\;milliseconds\qquad(b)\;0.5\;milliseconds\qquad(c)\;1\;milliseconds\qquad(d)\;4\;milliseconds$

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1 Answer

Answer : (b) $\;0.5\;milliseconds$
Explanation :
Time period (T) = $\; \large\frac{1}{1000}$$=1\;millisecond$
Next rare faction appears $\;\large\frac{1}{2}\;$ time period is 0.5 milliseconds .
answered Mar 7, 2014 by yamini.v
edited Mar 25, 2014 by balaji.thirumalai
 

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