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
What is called the persistence of audible sound due to the successive reflections from the surrounding objects even after the source has stopped to produce that sound?
Reflection
Echo
Reverberation
Rarefaction
The frequency of a wave travelling at a speed of 500 m/s is 25Hz. What is its time period?
20 s
0.05 s
25 s
0.04 s
What is the source of all wave motion?
Vibrating object
Region of variable high and low pressure
Wave pattern
Harmonic object
The study of waves applies to what other subject?
Lightning
Chemistry
Sound
Mathematics
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
Which of the following will remain unchanged when a sound wave travels in air or in water?
Frequency
Wavelength and frequency
Speed and frequency
Amplitude
Which of the following is not a characteristic of a musical sound?
Pitch
Wavelength
Quality
Loudness
The distance between the first and fifth nodes in a standing wave is 40.0 cm. If the waves travel at 2.50 m/s, What is the frequency of the waves?
25Hz
12.5Hz
125Hz
20Hz
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
