NEET Physics Waves Class 11 Questions

If a wave gets refracted into a denser medium, then which of the following is true?

A pipe open at both ends has fundamental frequency f in air. The pipe is dipped vertically in water so that half of it is in water. The fundamental frequency of the air column is now

A string fixed at its both ends vibrates in 5 loops as shown in the figure. The total number of nodes and antinodes are respectively

The phase difference between oscillatory motion of two points separated by a distance of $\frac{\lambda}{2}$ is (where $\lambda$ is the wavelength)

In the wave equation $y = 0.5 \sin \left( \frac{2\pi}{\lambda} (400t - x) \right)$ the velocity of the wave will be :

In stationary waves, nodes are the points where there is

Tick the correct:

The displacement of a string is given by y(x, t) = 0.06sin($\frac{2\pi x}{3}$cos(120πt)), where x and y are in metre and t in second. The length of the string is 1.5 m and its mass is 3.0 × 10⁻² kg.

The temperature at which the speed of sound in air becomes double of its value at 0°C is

Statemen$t^{-1}$: A steel wire with mass per unit length 7.0 × 10⁻³ kg m⁻¹ is under tension of 70 N. The speed of transverse waves in the wire = 100 m/s. Statemen$t^{-2}$: For a solid rod, the Young's modulus of elasticity is 3.2 × 10¹¹ N m⁻² and density is 8 × 10³ kg m⁻³. The velocity of longitudinal wave in the rod = 2 × 10³.

A pulse is generated at lower end of a hanging rope of uniform density and length L. The speed of the pulse when it reaches the mid point of the rope is

An organ pipe closed at one end has fundamental frequency of 1500 Hz. The maximum number of overtones generated by this pipe which a normal person can hear is

A string 2.0 m long and fixed at its end is driven by a 240 Hz vibrator. The string vibrates in its third harmonic mode. The speed of the wave and its fundamental frequency is-

Two tuning forks A and B are sounded together giving rise to 8 beats in 2 s. When fork A is loaded with wax, the beat frequency is reduced to 4 beats in 2 s. If the original frequency of tuning fork B is 380 Hz then original frequency of tuning fork A is _____ Hz.

What is the minimum distance between two points having the same phase in a wave called?

What is the speed of sound in air at standard temperature and pressure (STP)?

What does the principle of superposition state regarding the displacement of waves in the same medium?

What type of wave is characterized by oscillations of constituents of the medium perpendicular to the direction of wave propagation?

What is the relationship between the speed of sound in a medium and its density according to the NCERT content?

What happens to a traveling wave at a rigid boundary?

What is the fundamental frequency of a pipe closed at one end with a length of 30 cm and speed of sound at 330 m/s?

What is the phase change experienced by a wave upon reflection from a rigid boundary?

In a transverse wave, the particles of the medium oscillate in which direction relative to wave propagation?

What happens to a wave pulse when it reflects off a rigid boundary?

What is the phase change of a wave pulse upon reflection at a rigid boundary?

What factor does the speed of a wave in a medium depend on?

What is the condition for a function y to represent a travelling wave in one dimension?

Which of the following statements about wave motion is correct?

Which of the following statements about wave motion is correct?

Which combination of statements about wave behavior and properties is correct?

Which of the following statements about wave properties and propagation is correct?

Which of the following statements about wave motion and reflection is correct?

What is the speed of sound in air at standard temperature and pressure (STP)?

What happens to a wave reflected at a rigid boundary?

What is the angular frequency (ω) of a wave related to?

What is the minimum distance between two points having the same phase in a wave called?

What type of waves can propagate in all media, including solids, liquids, and gases?

What is the speed of sound in air at standard temperature and pressure (STP)?

In a harmonic progressive wave, how does the amplitude of oscillation vary among different particles of the medium?

What property of a medium primarily determines the speed of a mechanical wave according to the NCERT description?

What is the amplitude of the wave described by the equation y(x, t) = 0.005 sin (80.0 x – 3.0 t)?

Which of the following statements about the behavior of waves is correct?

Which of the following statements about wave motion is correct?

Which of the following combinations correctly describe the characteristics of stationary waves in a stretched string fixed at both ends?

Which of the following statements about wave motion and superposition is correct?

Which of the following statements about wave motion and superposition is correct?

Which of the following statements about wave motion is correct?

Which of the following statements about wave motion and characteristics is/are correct?

Assertion (A): If two sinusoidal waves with the same amplitude and frequency travel in the same direction but have a phase difference, they interfere to form a wave with a different frequency.

Reason (R): The principle of superposition states that the resultant displacement in a medium is the sum of displacements due to individual waves.

Assertion (A): Mechanical waves require a medium for propagation.

Reason (R): Mechanical waves can propagate through vacuum.