MHT CET 2025 19th April Evening Shift | Waves Question 48 | Physics

When two tuning forks are sounded together, 6 beats per second are heard. One of the fork is in unison with 0.70 m length of sonometer wire and another fork is in unison with 0.69 m length of the same sonometer wire. The frequencies of the two tuning forks are

$320 \mathrm{~Hz}, 326 \mathrm{~Hz}$

$414 \mathrm{~Hz}, 420 \mathrm{~Hz}$

$420 \mathrm{~Hz}, 426 \mathrm{~Hz}$

$480 \mathrm{~Hz}, 486 \mathrm{~Hz}$

MHT CET 2025 19th April Morning Shift

MCQ (Single Correct Answer)

-0

When source of sound moves towards a stationary observer, the apparent frequency heard by him

increases and wavelength also increases.

increases while wavelength decreases.

remains the same while wavelength decreases.

decreases and wavelength remains the same.

MHT CET 2025 19th April Morning Shift

MCQ (Single Correct Answer)

-0

The frequency of fourth overtone of a closed pipe is in unison with the fifth overtone of an open pipe. The ratio of length of closed pipe to that of open pipe is

$2: 3$

$3: 4$

$4: 5$

$5: 6$

MHT CET 2025 19th April Morning Shift

MCQ (Single Correct Answer)

-0

A string of mass $0.1 \mathrm{kgm}^{-1}$ has length 0.9 m . It is fixed at both ends and stretched such that it has a tension of 40 N . The string vibrates in three segments with amplitude 0.3 cm . The amplitude (maximum) of the particle velocity is (in $\mathrm{m} / \mathrm{s}$)

$\frac{\pi}{2}$

$\frac{\pi}{3}$

$\frac{\pi}{5}$

$\frac{\pi}{6}$

PREVIOUS NEXT

MHT CET Subjects