Oscillations and Waves — practice questions
76 curated practice questions from Oscillations and Waves (Physics NEET, NTA Exams) — 26 medium, 18 hard, 32 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Two vibrating tuning forks produce progressive waves given by y_ 1 =4 (500 t) and y_ 2 =2 (506 t) . Number of beats…
- Two pendulums of length 121 cm and 100 cm start vibrating in phase. At some instant, the two are at their mean position…
- Assertion : Sound waves cannot propagate through vacuum but light waves can. Reason : Sound waves cannot be polarized…
- A wave represented by the equation y=A (k x- t) is superimposed with another wave to form a stationary wave such that…
- The equation y=A 2 ( t T - x ) . where the symbols carry the usual meaning and A, T and λ are positive, represents a…
- A cylindrical tube open at both the ends has a fundamental frequency of 390 Hz in air. If 1 4 t h of the tube is…
- Two periodic waves of intensities A_ 1 and 1_ 2 pass through a region at the same time in the same direction. The sum…
- Starting from the origin a body oscillates simple harmonically with a period of 2 s. After what time will its kinetic…
- The time period of a spring-mass system as shown in the figure is T 0 , if the spring-mass system is allowed to fall…
- A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass…
- A transverse wave is described by the equation y=y_ n 2 (f t- x ) . The maximum particle velocity is equal to four…
- The equation of a progressive wave is y=3 (60 t+2 x) where x and y are in meters and t in seconds. Which of the…
- Given below are two statements Statement I : Wave in a stretched string is transverse. Statement II : String has no…
- Time periods of two pendulums A and B are T and 5 T 4 . They start undergoing SHM at the same time from the mean…
- The time period of a simple pendulum measured inside a stationary lift is found to be T. If the lift starts…
- Transverse waves of same frequency are generated in two steel wires A and B. The diameter of A is twice of B and the…
- Two simple harmonic motions of angular frequency 100 and 1000 rad s -1 have the same displacement amplitude. The ratio…
- A second pendulum is mounted in a rocket. Its period of oscillation decreases when the rocket
- If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse…
- Assertion : Sound waves are electromagnetic waves. Reason : Sound wave can pass through the vacuum.
- A particle of mass m is executing oscillations about the origin on the x-axis. Its potential energy is given as U_ x…
- A wave length 0.60 cm is produced in air and it travels with a speed of 300 m/s. It will be
- There is a simple pendulum hanging from the ceiling of a lift. When the lift is stand still, the time–period of the…
- A sound absorber attenuates the sound level by 20 dB. The intensity decreases by a factor of
- A body executes simple harmonic motion. The potential energy (PE), kinetic energy (KE) and total energy (TE) are…
- A loaded vertical spring executes SHM with period 4 s. The difference between kinetic energy and potential energy of…
- The displacement y of a particle executing periodic motion is given by y=4 ^ 2 ( 1 2 t ) (1000 t) The expression may be…
- The displacement of a particle performing SHM at any time t is x=A ( t)+B ( t) , the amplitude of oscillation is
- A source emitting sound waves of frequency 100 Hz in air is observed by an observer moving with a constant velocity of…
- The potential energy of a simple harmonic oscillator when the particle is half way to its end point is:
- The minimum intensity of audibility of sound is 10 -12 W/m 2 . The intensity of a sound is 10 -9 W/m 2 . The intensity…
- A simple pendulum has time period T 1 . The point of suspension is now moved upward according to the relation y=k t^ 2…
- A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz…
- Tension of a sonometer wire is doubled, to keep the fundamental frequency of wire same, length of the wire must be…
- A sound is produced by plucking a string in a musi-cal instrument, then :
- A body is executing SHM. At displacement x its potential energy is U x and at displacement y its potential energy is U…
- If the equation of motion of a progressive wave is y=0.3 [314 t-1.57 x] m, then the velocity of this wave would be
- A wave y=a ( t-k x) on a string meets with another wave producing a node at x = 0. Then the equation of the unknown…
- A rope of length L and mass M hangs freely from the ceiling. The velocity of transverse wave as a function of position…
- Assertion : Solids can support both longitudinal and transverse waves but only longitudinal waves can propagate in…
- The motion of a particle is expressed by the equation II = - β x, where II is the acceleration, x the displacement from…
- The 4th overtone of a closed organ pipe is same as that of 3rd overtone of an open pipe. The ratio of the length of the…
- The ratio of velocity of sound in hydrogen and oxygen at STP is :
- How many times more intense is a 60 dB sound than a 30 dB sound?
- Calculate the fundamental frequency of a sonometer wire of length = 20 cm, tension 25 N, cross-sectional area = 10 -2…
- The path difference between the two waves aligned V_ 1 & =a_ 1 ( t- 2 x ) and V_ 2 & =a_ 2 ( t- 2 x + ) i 5 aligned
- A wave traveling in positive X- direction with A = 0.2 m has a velocity of 360 m/s. If λ = 60 m the correct expression…
- A mass suspended separately by two different springs of spring constant k 1 and k 2 gives the time period T 1 and T 2…
- A mass M is suspended from a spring of negligible mass so that the mass executes SHM with time period T. If the mass is…
- A particle is executing a SHM along the x-axis according to the equation x =A ( t) . What is the magnitude of the…
- The length of a wire between the two ends of a sonometer is 105 cm. It is desired to divide this wire into 3 segments…
- A body executes simple harmonic motion. The potential energy (P.E), kinetic energy (K.E.) and total energy (T.E.) are…
- The time-period of a particle undergoing SHM is 16 s. It starts its motion from the mean position, after 2 s its…
- A particle is executing linear simple harmonic motion of amplitude A. At what displacement is the energy of the…
- The equation of a wave on a string of linear mass density 0.04 kg m -1 is given by y=0.02(m) [2 ( t 0.04(5) - x 0.50(m)…
- The extension in a string, obeying Hooke's law is x. The speed of transverse wave in the stretched string is v. If the…
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- An open pipe is suddenly closed at one end with the result that the frequency of third harmonic of the closed pipe is…
- Length of a string tied to two rigid supports is 40 cm. Maximum length (wavelength in cm) of a stationary wave produced…
- A particle of mass m executes simple harmonic motion with amplitude a and frequency v . The average kinetic energy…
- A point mass oscillates along the x-axis according to the law x = x _ a ( t- / 4) . If the acceleration of the particle…
- A wave is represented by the equation y=A (10 x+15 t+ 3 ) where x is in meter and t is in second, the expression…
- The number of possible natural oscillations of column in a pipe closed at one end of length 85 cm whose frequencies lie…
- When two tuning forks (fork 1 and fork 2) are sounded simultaneously, 4 beats per second are heard. Now, some tape is…
- A particle executes linear simple harmonic motion with an amplitude of 2 cm. When the particle is at 1 cm from the mean…
- Assertion : A wave is motion of matter as a whole in a medium. Reason : Wind is same as sound wave in air.
- A particle of mass 0.3 kg is subjected to a force F=-k x with k = 15 N/m. What will be its initial acceleration if it…
- A sonometer wire of length 1.5 m is made of steel. The tension in it produces an elastic strain of 1%. What is the…
- The total energy of a particle, executing simple harmonic motion is proportional to
- The acceleration of a particle performing SHM is 12 m/s 2 at a distance of 3 cm from the mean position. The time-period…
- The potential energy of a harmonic oscillator of mass 2 kg in its rest position is 5 joules. If the total energy is 9…
- The displacement y of a particle in a medium can be expressed as y=10^ -5 (100 t+20 x+ 4 ) m , where t is in seconds…
- A string of length 0.4 m and mass 10 -2 kg is tightly clamped at its ends. The tension in the string is 1.6 N…
- The displacement y of a wave traveling in the x-direction is given by y=10^ -4 (600 t-2 x+ 3 ) metres, where x is…
- The total energy of the body executing SHM is E. Then the kinetic energy, when the displacement is half of the…
- Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…