354669 Velocity of sound in vacuum is

354670 Assertion :
On a rainy day sound travel slower than on a dry day.
Reason :
When moisture is present in air the density of air increases.

354671 For a solid rod, the Young's modulus of elasticity is \(3.2 \times {10^{11}}N{m^{ - 2}}\) and density is \(8 \times {10^3}\;kg\;{m^{ - 3}}\). The velocity of longitudinal wave in the rod will be

354672 The speed of sound in hydrogen at \({0^{\circ} {C}}\) is \({1200 {~ms}^{-1}}\). When some amount of oxygen is mixed with hydrogen, the speed decreases to \({500 {~ms}^{-1}}\). If density of oxygen is 16 times that of hydrogen, the ratio of hydrogen to oxygen by volume in this mixture is \({\dfrac{11}{10} \alpha}\). The value of \({\alpha}\) is

354669 Velocity of sound in vacuum is

354670 Assertion :
On a rainy day sound travel slower than on a dry day.
Reason :
When moisture is present in air the density of air increases.

354671 For a solid rod, the Young's modulus of elasticity is \(3.2 \times {10^{11}}N{m^{ - 2}}\) and density is \(8 \times {10^3}\;kg\;{m^{ - 3}}\). The velocity of longitudinal wave in the rod will be

354672 The speed of sound in hydrogen at \({0^{\circ} {C}}\) is \({1200 {~ms}^{-1}}\). When some amount of oxygen is mixed with hydrogen, the speed decreases to \({500 {~ms}^{-1}}\). If density of oxygen is 16 times that of hydrogen, the ratio of hydrogen to oxygen by volume in this mixture is \({\dfrac{11}{10} \alpha}\). The value of \({\alpha}\) is

354669 Velocity of sound in vacuum is

354670 Assertion :
On a rainy day sound travel slower than on a dry day.
Reason :
When moisture is present in air the density of air increases.

354671 For a solid rod, the Young's modulus of elasticity is \(3.2 \times {10^{11}}N{m^{ - 2}}\) and density is \(8 \times {10^3}\;kg\;{m^{ - 3}}\). The velocity of longitudinal wave in the rod will be

354672 The speed of sound in hydrogen at \({0^{\circ} {C}}\) is \({1200 {~ms}^{-1}}\). When some amount of oxygen is mixed with hydrogen, the speed decreases to \({500 {~ms}^{-1}}\). If density of oxygen is 16 times that of hydrogen, the ratio of hydrogen to oxygen by volume in this mixture is \({\dfrac{11}{10} \alpha}\). The value of \({\alpha}\) is

354669 Velocity of sound in vacuum is

354670 Assertion :
On a rainy day sound travel slower than on a dry day.
Reason :
When moisture is present in air the density of air increases.

354671 For a solid rod, the Young's modulus of elasticity is \(3.2 \times {10^{11}}N{m^{ - 2}}\) and density is \(8 \times {10^3}\;kg\;{m^{ - 3}}\). The velocity of longitudinal wave in the rod will be

354672 The speed of sound in hydrogen at \({0^{\circ} {C}}\) is \({1200 {~ms}^{-1}}\). When some amount of oxygen is mixed with hydrogen, the speed decreases to \({500 {~ms}^{-1}}\). If density of oxygen is 16 times that of hydrogen, the ratio of hydrogen to oxygen by volume in this mixture is \({\dfrac{11}{10} \alpha}\). The value of \({\alpha}\) is