Question 1 :
An open organ pipe has fundamental frequency 100 Hz. What frequency will be produced if its one end is closed?
Question 2 :
If sound wave travel from air to water, which of the following remain unchanged?
Question 5 : Two identical wires have the same fundamental frequency of <img style='object-fit:contain' width=46 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14bbe27ce131ff7c061d3"> when kept under the same tension. If the tension in one wire is increased by 2% the number of beats produced will be
Question 7 : A source of sound of frequency 90 vibrations/ <img style='object-fit:contain' width=21 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c0b27ce131ff7c06326"> is approaching a stationary observer with a speed equal to <img style='object-fit:contain' width=32 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c0b27ce131ff7c06327"> the speed of sound. What will be the frequency heard by the observer
Question 8 :
The minimum intensity of sound is zero at a point due to two sources of nearly equal frequencies, when
Question 9 :
If the equation of transverse wave is y=sin (kx-2t), then the maximum particle velocity is
Question 11 :
If the temperature increases, then what happens to the frequency of the sound produced by the organ pipe
Question 12 :
In stationary waves all particles between two nodes pass through the mean position
Question 13 : If the ratio of amplitude of two waves is 4 : 3 <img style='object-fit:contain' width=3 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14b741ac76a0b860fb82a"> Then the ratio of maximum and minimum intensity will be
Question 14 :
The tones that are separated by three octaves have a frequency ratio of
Question 15 :
At a certain instant a stationary transverse wave is found to have maximum kinetic energy. The appearance of string at that instant is
Question 17 :
Tube A has both ends open while tube B has one end closed. Otherwise they are identical. Their fundamental frequencies are in the ratio
Question 19 :
If the tension of sonometers wire increases four times then the fundamental frequency of the wire will increase by
Question 20 :
A tuning fork of frequency 512 Hz is used to produce vibrations in a sonometer wire of natural frequency 256 Hz. The wire will vibrate in
Question 21 :
In an orchestra, the musical sounds of different instruments are distinguished from one another by which of the following characteristics
Question 24 :
A resonance pipe is open at both ends and 30 cm of its length is in resonance with an external frequency 1.1 kHz. If the speed of sound is 330 m/s, which harmonic is in resonance?
Question 25 :
In the experiment to determine the speed of sound using a resonance column
Question 26 :
Two instruments having stretched strings are being played in union. When the tension of one of the instruments is increased by 1%, 3 beats are produced in 2s. the initial frequency of vibration of each wire is
Question 28 :
Fundamental frequency of pipe is 100 Hz and other two frequencies are 300 Hz and 500 Hz, then
Question 29 :
When a open pipe I producing third harmonic, number of nodes is
Question 31 :
A string in a musical instrument is 50 cm long and its fundamental frequency is 800 Hz. If a frequency of 1000 Hz is to be produced, the required length of string is
Question 32 :
A pipe closed at one end and open at the other end, resonate with sound waves of frequency 135 Hz and also 165 Hz, But not with any wave of frequency intermediate between these two. Then the frequency of the fundamental note is
Question 33 :
The number of waves contained in unit length of the medium is called
Question 35 : A man sitting in a moving train hears the whistle of the engine. The frequency of the whistle is <img style='object-fit:contain' width=46 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14c8f1ac76a0b860fbe4d">
Question 36 :
In the experiment for the determination of the speed of sound in air using the resonance column the resonates in the fundamental mode, with a tuning fork is 0.1m. When this length is changed to 0.35m, the same tuning fork resonates with the first overtone. Calculate the end correction.
Question 39 :
A bomb explodes on the moon. How long will it take for the sound to reach the earth?
Question 40 :
In open organ pipe, if fundamental frequency is v, then the other frequencies are
Question 41 :
Standing stationary waves can be obtained in an air column even if the interfering waves are
Question 42 :
A column of air of length 50 cm resonates with a stretched string of length 40 cm. The length of the same air column which will resonates with 60 cm of the same string at a the same tension is
Question 43 : Two increase the frequency from <img style='object-fit:contain' width=46 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14b701ac76a0b860fb811"> to <img style='object-fit:contain' width=46 height=20 src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea14bbe27ce131ff7c061d3"> the tension in the string has to be changed by
Question 46 :
If you set up the seven overtone on a string fixed at both ends, how many nodes and antinodes are set up in it?
Question 47 :
With what velocity an observer should move relative to a stationary source so that he hears a sound of double the frequency of source
Question 48 :
The type of waves that can be propagated through solid is
Question 49 :
When a longitudinal wave propagates through a medium, the particles of the medium execute simple harmonic oscillations about their mean positions. These oscillations of a particle are characterised by an invariant
Question 50 :
A source of sound emitting a tone of frequency 200 Hz moves towards an observer with a velocity <i>v </i>equal to the velocity of sound. If the observer also moves away from the source with the same velocity <i>v, </i>the apparent frequency heard by the observer is
