A sound source sends waves of 400Hz.It produces waves of wavelength 2.5 m. Calculate the velocity of sound.
100m/s
1000m/s
10000m/s
3000km/s
In which direction will the particles move, If a transverse wave is a transporting energy from east to west?
East to west only
Both eastward and westward
North to south only
Both northward and southward
Which of the following is not a characteristic of a musical sound?
Pitch
Wavelength
Quality
Loudness
What do the air particles , when the sound travels through air?
Vibrate along the direction of wave propagation
Vibrate but not in any fixed direction
Vibrate perpendicular to the direction of wave propagation
Do not vibrate
A standing wave with 7loops is generated in a string. If the waves travel at 17.5 m/s with a frequency of 1.40 × 102Hz. How long is the string?
0.875m
8m
0.438m
56m
What does the height of a water wave represent?
Amplitude
Velocity
Frequency
Which of the following will remain unchanged when a sound wave travels in air or in water?
Wavelength and frequency
Speed and frequency
What is the amplitude of thunder?
Lightning
Pulses do not have amplitude
What happens to the speed of the light in glass?
It becomes the speed of sound
It goes faster than in air
It goes slower than in air.
Light does not travel through glass
Pick out the most accurate from the following:
Sound and light waves both have similar wavelength
Sound and light waves both obey the laws of reflection
Sound and light waves both travel as longitudinal waves
Sound and light waves both travel through vacuum
