krit.club logo

Waves

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Transverse and Longitudinal Waves

Subtopic

Transverse and Longitudinal Waves under Waves for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is common to both transverse and longitudinal waves?

    A.

    They both can be polarized

    B.

    They both transfer energy

    C.

    They both involve particles moving perpendicular to the wave direction

    D.

    They both involve particles moving parallel to the wave direction

  2. 2.

    A disturbance that occurs only once and lasts for a short duration is called a:

    A.

    Periodic wave

    B.

    Wave pulse

    C.

    Sinusoidal wave

    D.

    Continuous wave

  3. 3.

    Which wave property depends only on the source and not on the medium?

    A.

    Speed

    B.

    Wavelength

    C.

    Frequency

    D.

    None of these

Download the worksheet for Waves - Transverse and Longitudinal Waves to practice offline. It includes additional chapter-level practice questions.

Displacement Relation for a Progressive Wave

Subtopic

Displacement Relation for a Progressive Wave under Waves for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A particle in a transverse wave moves in a direction that is:

    A.

    Parallel to the wave propagation

    B.

    Perpendicular to the wave propagation

    C.

    Opposite to the wave propagation

    D.

    At a 4545-degree angle to the wave propagation

  2. 2.

    What is the value of the wave number kk if the wavelength is 0.5 m0.5\text{ m}?

    A.

    π rad/m\pi\text{ rad/m}

    B.

    2π rad/m2\pi\text{ rad/m}

    C.

    4π rad/m4\pi\text{ rad/m}

    D.

    0.5π rad/m0.5\pi\text{ rad/m}

  3. 3.

    The phase of a particle at a distance xx from the origin at time tt for a wave y=asin(kxωt)y = a \sin(kx - \omega t) is:

    A.

    kxkx

    B.

    ωt\omega t

    C.

    kxωtkx - \omega t

    D.

    asin(kx)a \sin(kx)

Download the worksheet for Waves - Displacement Relation for a Progressive Wave to practice offline. It includes additional chapter-level practice questions.

Reflection of Waves and Standing Waves

Subtopic

Reflection of Waves and Standing Waves under Waves for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a stationary wave, the distance between an antinode and its nearest node is 55 cm. The wavelength is:

    A.

    55 cm

    B.

    1010 cm

    C.

    1515 cm

    D.

    2020 cm

  2. 2.

    If y1=asin(ωtkx)y_1 = a \sin(\omega t - kx) and y2=asin(ωt+kx+π)y_2 = a \sin(\omega t + kx + \pi), the resulting stationary wave will have a node at:

    A.

    x=0x = 0

    B.

    An antinode at x=0x = 0

    C.

    No stationary wave is formed

    D.

    Amplitude is doubled at x=0x = 0

  3. 3.

    The number of nodes in a string vibrating in its 4th4^{th} harmonic is:

    A.

    3

    B.

    4

    C.

    5

    D.

    6

Download the worksheet for Waves - Reflection of Waves and Standing Waves to practice offline. It includes additional chapter-level practice questions.

Beats

Subtopic

Beats under Waves for Grade 11 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the number of times sound intensity becomes maximum in 5 seconds if the source frequencies are 440 Hz440\text{ Hz} and 442 Hz442\text{ Hz}?

    A.

    2

    B.

    5

    C.

    10

    D.

    20

  2. 2.

    If the period of the first wave is 0.1 s0.1\text{ s} and the second wave is 0.125 s0.125\text{ s}, the beat frequency is:

    A.

    2 Hz

    B.

    10 Hz

    C.

    8 Hz

    D.

    18 Hz

  3. 3.

    The phenomenon of beats is most easily observed when the amplitudes of the two waves are:

    A.

    Very different

    B.

    Nearly equal

    C.

    Exactly zero

    D.

    Infinite

Download the worksheet for Waves - Beats to practice offline. It includes additional chapter-level practice questions.

Waves - CBSE Class 11 Physics Notes & Revision | Krit.club