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Waves

NEET level, single correct, medium

1 of 142

Question 1 of 142

An open organ pipe of length $L$ vibrates in its fundamental mode. The wavelength of the sound wave produced is:

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Answer: (A) $2L$

For an open organ pipe, fundamental frequency

\lambda = 2L

NEET question paper PDF

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NEET 2025 question paper (Code 45)

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More Physics practice

WavesA string of length $L$ fixed at both ends vibrates in its second overtone (3rd harmonic). The number of nodes in the standing wave is:
WavesA siren emitting frequency $f = 1000\,\text{Hz}$ approaches a stationary listener with speed $34\,\text{m/s}$ (speed of sound $v=340\,\text{m/s}$ ). Observed frequency is:
WavesTwo strings $(A, B)$ having linear densities $\mu_{A}=2 \times 10^{-4} \mathrm{~kg} / \mathrm{m}$ and, $\mu_{B}=4 \times 10^{-4} \mathrm{~kg} / \mathrm{m}$ and lengths $L_{A}=2.5 \mathrm{~m}$ and $L_{B}=1.5 \mathrm{~m}$ respectively are joined. Free ends of $A$ and $B$ are tied to two rigid supports $C$ and $D$ , respectively creating a tension of 500 N in the wire. Two identical pulses, sent from $C$ and $D$ ends, take time $t_{1}$ and $t_{2}$ , respectively, to reach the joint. The ratio $t_{1} / t_{2}$ is :
WavesThe equation of wave is given by $Y={10}^{-2}\sin 2\pi \left(160t-0.5x+\dfrac{\pi }{4}\right)$ , where $x$ and $Y$ are in $m$ and $t$ in $s$ . The speed of the wave is _______ $km{h}^{-1}$ .
WavesA transverse harmonic wave on a string is given by $y\left(x,t\right)=5\sin \left(6t+0.003x\right)$ where $x$ and $y$ are in $cm$ and $t$ in $\sec$ . The wave velocity is _________ $m{s}^{-1}$ .
WavesA steel wire with mass per unit length $7.0\times {10}^{–3}kg{m}^{–1}$ is under tension of $70N$ . The speed of transverse waves in the wire will be:

NEET Physics practice question on Waves, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

An open organ pipe of length LLL vibrates in its fundamental mode. The wavelength of the sound wave produced is:

NEET question paper PDF

More Physics practice

An open organ pipe of length $L$ vibrates in its fundamental mode. The wavelength of the sound wave produced is: