Pick out the most correct
The higher the frequency shorter its speed
The higher the frequency the shorter its wavelength
The higher the frequency greater its amplitude
The higher the frequency longer its period
What is called the air pressure variation associated with shock waves produces a very sharp and loud sound?
Super sonic boon
Sonic boon
Ultra sonic boon
Infra sonic boon
Pick out the most correct from the following:
Velocity of sound in gases is highest and least in solids and the velocity in gases increases with temperature
Velocity of sound in solids is highest and least in gases and the velocity in gases decreases with temperature
Velocity of sound in gases is the highest and least in solids and the velocity in gases decrease with temperature
Velocity of sound in solids is the highest and least in gases and the velocity in gases increase with temperature
How did the bats detect the obstacles in their path?
By receiving the reflected infrasonic waves
By receiving the reflected radio waves
By receiving the reflected electro-magnetic waves
By receiving the reflected ultrasonic waves.
An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the sending and receiving of the wave is 1.6s. What is the depth of the sea, if the velocity of sound in the seawater is 1400m/s?
1120m
560m
1400m
112m
What is called the amount of sound energy passing each second through unit area?
Young’s modulus
Intensity of sound
Amplitude
Frequency
Calculate the velocity of sound in Nitrogen. Density of Nitrogen at STP is 0.00125gm/cm3. The ratio of specific heats of Nitrogen is 1.4.
336.91m/s
336.91/s
3369.1m/s
3151cm/s
A source of frequency of 500Hz emits waves of wavelength 0.4m. How long does the wave take to travel 600m?
3s
6s
9s
12s
The velocity of sound in CO2 at 0o C is 262m/sec., Find the ratio of specific heats of CO2.
0.00013
0.013
0.13
1.33
Which of the following is not a characteristic of musical sound ?
Pitch
Wavelength
Quality
Loudness
