If the velocity of sound in hydrogen is 1248 m/s, the velocity of sound in oxygen is
[Given: MO = 32 and MH = 2]
(A) 1248 m/s
(B) 624 m/s
(C) 312 m/s
(D) 300 m/s
1 Answers
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The Laplace’s correction in the expression for velocity of sound given by Newton is needed because sound waves
Correct answer is (C) propagate adiabatically
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Which of the following is CORRECT? (A) 1 mole of oxygen atoms contains 6.0221367 × 10^(23) atoms of oxygen.
(D) All of these 1 mole of atom or ions or molecule or particle contains \(6.0221367 × 10^{23}\) atoms, or ions or molecules or particles respectively. Hence, option (D) is right answer.
2 Answers 1 views
The velocity of sound in air at 27 °C is 340 m/s. Calculate the velocity of sound in air at 127 °C.
Given: T1 = 27 °C = 27 + 273 = 300 K, v1 = 340 m/s, T2 = 127 °C = 127 + 273 = 400 K To find: Velocity (v2) Formula: \(\frac{v_1}{v_2}=\sqrt{\frac{T_1}{T_2}}\) Calculation: From formula, v2 = v1 \(\sqrt{\frac{T_2}{T_1}}\) = 340, \(\sqrt{\frac{400}{300}}\) =...
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At a given temperature, velocity of sound in oxygen and in hydrogen has the ratio ……………
Correct option is: (B) 1 : 4
2 Answers 1 views
The wavelength of sound in air is 1.5 m and that in liquid is 2 m. If the velocity of sound in air is 330 m/s, the velocity of sound in liquid is
Correct option is: (B) 440 m/’s
2 Answers 6 views
A sound note emitted from a certain source has a velocity of 300 m/s in air and 1050 m/s in water. If the wavelength of sound note in air is 2 m
Correct option is: (C) 7 m
2 Answers 1 views
The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
Correct option is (A) y = 8x \(\because\) Quantities of hydrogen and oxygen are x and y and their quantity are in ratio 1 : 8. \(\therefore\) x : y = 1 : 8 \(\Rightarrow\) \(\frac xy=\frac18\) \(\Rightarrow\) y =...
2 Answers 1 views
The ratio of molecular weight of hydrogen and oxygen in water is 1 : 8. (The relation between hydrogen and oxygen in linear
2 Answers
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The characteristic of sound which distinguishes between a shrill sound and a growling sound is
Correct option is A) pitch
2 Answers 1 views
Calculate the increase in velocity of sound when the temperature changes from `-3^@C` to `27^@C`.Velocity of sound at `-3^@ C` is `300 ms^(-1)`.Given
Correct Answer - `20 ms^(-1)`
2 Answers 1 views