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Superposition of Waves Physics - Superposition of Waves

Maharashtra Board - STD 12 - Physics (MSBSHSE - Semi English Medium). 250 questions in this chapter.

Question types

Superposition of Waves question types

250 questions across 5 question groups — pick any mix to generate a Physics paper with step-by-step answer keys.

250
Questions
5
Question groups
5
Question types
Sample Questions

Superposition of Waves questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
A stretched string, $2 m$ long, vibrates in its third overtone. The distance between consecutive nodes is
  • A
    $40 cm$
  • ✓
    $50 cm$
  • C
    $66.7 cm$
  • D
    $100 cm$.

Answer: B.

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Q 2M.C.Q (1 Marks)1 Mark
Two vibrating particles in the adjacent loops of a stationary wave have ..... at a given instant.
  • A
    the same phase
  • ✓
    opposite phases
  • C
    slightly different phases
  • D
    the same velocity

Answer: B.

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Q 3M.C.Q (1 Marks)1 Mark
At a given instant two vibrating particles in the same loop of a stationary wave have
  • ✓
    the same phase
  • B
    opposite phases
  • C
    slightly different phases
  • D
    opposite velocities.

Answer: A.

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Q 4M.C.Q (1 Marks)1 Mark
Two simple harmonic waves of the same amplitude and frequency, but $90^{\circ}$ out of phase, pass through the same region in a medium. The resultant wave has
  • ✓
    an amplitude greater than either of the component waves
  • B
    an amplitude smaller than either of the component waves
  • C
    zero amplitude
  • D
    an amplitude slowly varying with time.

Answer: A.

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Q 5M.C.Q (1 Marks)1 Mark
A transverse wave travelling in a denser medium is reflected from a rarer medium. Then,
  • ✓
    an incident crest is reflected as a crest
  • B
    an incident crest is reflected as a trough
  • C
    there is a phase change of $2 \pi rad$
  • D
    there is a phase change of $\pi / 2 rad$.

Answer: A.

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Q 9Short Answer Type Question2 Marks
A simple harmonic progressive wave is given by $y=A \sin (\omega t-k x)$, where the symbols have their usual meaning. What is
1. the particle velocity at a point $x$ and time $t$
2. the wave speed?
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Q 13Answer the following in Brief3 Marks
Which are the three broad types of musical instruments?
OR
Write a short note on types of musical instruments.
Musical instruments have been classified in various ways. One ancient system that was based on the primary vibrating medium distinguished three main types of instruments : stringed, wind and percussion.
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Q 16Answer the following in Brief3 Marks
Two tuning forks when sounded together produce $5$ beats per second. A sonometer wire of length $0.24 m$ is in unison with one of the forks. When the length of wire is increased by $1\ cm$, it is in unison with the other fork. Find the frequencies of the tuning forks.
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Q 17Answer the following in Brief3 Marks
$32$ tuning forks are arranged in descending order of frequencies. If any two consecutive tuning forks are sounded together, the number of beats heard is eight per second. The frequency of the first tuning fork is octave of the last fork. Calculate the frequency of the first, last and the $21$ st fork.
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Q 22Answer the following in Detail4 Marks
A set of $12$ tuning forks is arranged in order of increasing frequencies. Each fork produces $V$ beats per second with the previous one. The last is an octave of the first. The fifth fork has a frequency of $90 Hz$. Find $V$ and the frequency of the first and the last tuning forks.
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