Prepare for NEET Physics Waves (Velocity Of Sound) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to understand factors affecting sound speed in various media.
At what temperature is the speed of sound in air approximately twice its speed at 0°C?
819°C
409.5°C
273°C
546°C
If the ratio of specific heats of a gas is 1.4, and the speed of sound in the gas at standard temperature and pressure is 330 m/s, what is the rms speed of the gas molecules?
460 m/s (approximately)
330 m/s
660 m/s
230 m/s
The speed of sound in air at 0°C is 330 m/s. Approximately what will be the speed of sound at 20°C?
330 m/s
342 m/s
354 m/s
318 m/s
In which medium does sound travel the fastest, generally?
Solids
Liquids
Gases
Vacuum
If the frequency of a sound wave is doubled, what happens to its speed in the same medium?
Doubles
Halves
Remains the same
Quadruples
Sound travels faster in humid air than in dry air. This is primarily because:
Humid air is less dense than dry air.
Water vapor molecules have higher kinetic energy than nitrogen or oxygen molecules.
Humid air has more pressure than dry air.
Collisions between water vapor molecules and other air molecules enhance the propagation of sound.
The velocity of sound in a gas is given by , where is pressure, is density, and is a constant. If the pressure is doubled while keeping the temperature constant, what happens to the velocity?
Doubles
Halves
Remains the same
Increases by a factor of
An air column, closed at one end and open at the other, resonates with a tuning fork. The smallest length of the column is 50 cm. What is the next larger length of the column that will resonate with the same tuning fork?
100 cm
150 cm
200 cm
250 cm
A closed air column resonates with a tuning fork at a minimum length of 25 cm. What is the next resonant length for the same tuning fork?
50 cm
75 cm
100 cm
125 cm
The fundamental frequency of a closed air column is 200 Hz. If the speed of sound is 340 m/s, what is the next resonant length of the air column?
85 cm
127.5 cm
170 cm
255 cm