Sound, Beats, Pitch Loudness Laplace Correction
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NEET DIGITAL LIBRARY
WAVES

172786 A sound has an intensity of $2 \times 10^{-8} \mathrm{~W} / \mathrm{m}^{2}$. Its intensity level in decibels is $\left(\log _{10} 2=0.3\right)$

1 23
2 3
3 43
4 4.3
Manipal UGET-2012
WAVES

172787 Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

1 $\sqrt{8}$
2 $\sqrt{2 / 17}$
3 $\sqrt{1 / 8}$
4 $\sqrt{32 / 17}$
Manipal UGET-2012
WAVES

172788 A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, the distance between the cliffs is

1 $680 \mathrm{~m}$
2 $1700 \mathrm{~m}$
3 $340 \mathrm{~m}$
4 $1620 \mathrm{~m}$
Manipal UGET-2012
WAVES

172789 A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points $P$ and $Q$ are at a distance of $4 \mathrm{~m}$ and $9 \mathrm{~m}$ respectively from the source. The ratio of amplitudes of the waves at $P$ and $Q$ is

1 $\frac{3}{2}$
2 $\frac{4}{9}$
3 $\frac{2}{3}$
4 $\frac{9}{4}$
Manipal UGET-2009
Join With Us for More Updates
WAVES

172786 A sound has an intensity of $2 \times 10^{-8} \mathrm{~W} / \mathrm{m}^{2}$. Its intensity level in decibels is $\left(\log _{10} 2=0.3\right)$

1 23
2 3
3 43
4 4.3
Manipal UGET-2012
WAVES

172787 Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

1 $\sqrt{8}$
2 $\sqrt{2 / 17}$
3 $\sqrt{1 / 8}$
4 $\sqrt{32 / 17}$
Manipal UGET-2012
WAVES

172788 A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, the distance between the cliffs is

1 $680 \mathrm{~m}$
2 $1700 \mathrm{~m}$
3 $340 \mathrm{~m}$
4 $1620 \mathrm{~m}$
Manipal UGET-2012
WAVES

172789 A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points $P$ and $Q$ are at a distance of $4 \mathrm{~m}$ and $9 \mathrm{~m}$ respectively from the source. The ratio of amplitudes of the waves at $P$ and $Q$ is

1 $\frac{3}{2}$
2 $\frac{4}{9}$
3 $\frac{2}{3}$
4 $\frac{9}{4}$
Manipal UGET-2009
For More Updates join with Us
WAVES

172786 A sound has an intensity of $2 \times 10^{-8} \mathrm{~W} / \mathrm{m}^{2}$. Its intensity level in decibels is $\left(\log _{10} 2=0.3\right)$

1 23
2 3
3 43
4 4.3
Manipal UGET-2012
WAVES

172787 Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

1 $\sqrt{8}$
2 $\sqrt{2 / 17}$
3 $\sqrt{1 / 8}$
4 $\sqrt{32 / 17}$
Manipal UGET-2012
WAVES

172788 A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, the distance between the cliffs is

1 $680 \mathrm{~m}$
2 $1700 \mathrm{~m}$
3 $340 \mathrm{~m}$
4 $1620 \mathrm{~m}$
Manipal UGET-2012
WAVES

172789 A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points $P$ and $Q$ are at a distance of $4 \mathrm{~m}$ and $9 \mathrm{~m}$ respectively from the source. The ratio of amplitudes of the waves at $P$ and $Q$ is

1 $\frac{3}{2}$
2 $\frac{4}{9}$
3 $\frac{2}{3}$
4 $\frac{9}{4}$
Manipal UGET-2009
NEET DIGITAL LIBRARY
WAVES

172786 A sound has an intensity of $2 \times 10^{-8} \mathrm{~W} / \mathrm{m}^{2}$. Its intensity level in decibels is $\left(\log _{10} 2=0.3\right)$

1 23
2 3
3 43
4 4.3
Manipal UGET-2012
WAVES

172787 Oxygen is 16 times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is

1 $\sqrt{8}$
2 $\sqrt{2 / 17}$
3 $\sqrt{1 / 8}$
4 $\sqrt{32 / 17}$
Manipal UGET-2012
WAVES

172788 A man, standing between two cliffs, claps his hands and starts hearing a series of echoes at intervals of one second. If the speed of sound in air is $340 \mathrm{~ms}^{-1}$, the distance between the cliffs is

1 $680 \mathrm{~m}$
2 $1700 \mathrm{~m}$
3 $340 \mathrm{~m}$
4 $1620 \mathrm{~m}$
Manipal UGET-2012
WAVES

172789 A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points $P$ and $Q$ are at a distance of $4 \mathrm{~m}$ and $9 \mathrm{~m}$ respectively from the source. The ratio of amplitudes of the waves at $P$ and $Q$ is

1 $\frac{3}{2}$
2 $\frac{4}{9}$
3 $\frac{2}{3}$
4 $\frac{9}{4}$
Manipal UGET-2009
Join With Us for More Updates