KCET 2026 | Waves Question 1 | Physics

A source of frequency $\nu$ gives $6$ beats/second when sounded with a source of frequency $200$ Hz. The second Harmonic of frequency $2\nu$ of the source gives $8$ beats/second when sounded with a source of frequency $420$ Hz. The value of $\nu$ is

$205$ Hz

$206$ Hz

$195$ Hz

$210$ Hz

KCET 2025

MCQ (Single Correct Answer)

-0

The angle between the particle velocity and wave velocity in a transverse wave is [except when the particle passes through the mean position]

$\frac{\pi}{4}$ radian

$\frac{\pi}{2}$ radian

$\pi$ radian

Zero radian

KCET 2024

MCQ (Single Correct Answer)

-0

A motor-cyclist moving towards a huge cliff with a speed of $18 \mathrm{kmh}^{-1}$, blows a horn of source frequency 325 Hz . If the speed of the sound in air is $330 \mathrm{~ms}^{-1}$, the number of beats heard by him is

KCET 2024

MCQ (Single Correct Answer)

-0

A galaxy is moving away from the Earth so that a spectral line at 600 nm is observed at 601 nm . Then, the speed of the galaxy with respect to the Earth is

$500 \mathrm{~km} \mathrm{~s}^{-1}$

$200 \mathrm{~km} \mathrm{~s}^{-1}$

$50 \mathrm{~km} \mathrm{~s}^{-1}$

$20 \mathrm{~km} \mathrm{~s}^{-1}$

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