A stone is hung in air from a wire which is stretched over a sonometer. The bridges of the sonometer are L cm apart when the wire is in unison with a tuning fork of frequency N. When the stone is completely immersed in water, the length between the bridges is l cm for re-establishing unison, the specific gravity of the material of the stone is

Question

TuteeHUB · Accepted Answer

$$\frac{{{L}^{2}}-{{l}^{2}}}{{{L}^{2}}}$$

TuteeHUB · Answer

$$\frac{{{L}^{2}}}{{{L}^{2}}+{{l}^{2}}}$$

TuteeHUB · Answer

$$\frac{{{L}^{2}}}{{{L}^{2}}-{{l}^{2}}}$$

1.	A stone is hung in air from a wire which is stretched over a sonometer. The bridges of the sonometer are L cm apart when the wire is in unison with a tuning fork of frequency N. When the stone is completely immersed in water, the length between the bridges is l cm for re-establishing unison, the specific gravity of the material of the stone is
A.	\[\frac{{{L}^{2}}}{{{L}^{2}}+{{l}^{2}}}\]
B.	\[\frac{{{L}^{2}}-{{l}^{2}}}{{{L}^{2}}}\]
C.	\[\frac{{{L}^{2}}}{{{L}^{2}}-{{l}^{2}}}\]
D.	\[\frac{{{L}^{2}}-{{l}^{2}}}{{{L}^{2}}}\]
Answer» D. \[\frac{{{L}^{2}}-{{l}^{2}}}{{{L}^{2}}}\]

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