MHT CET 2026 17th April Evening Shift | Waves Question 27 | Physics

In a sonometer experiment, the fundamental frequency of vibration of wire is '$n_1$' when wire is stretched by hanging a metal bob. If the bob is completely immersed in water, the frequency of vibration of wire becomes '$n_2$'. The relative density of the metal of the bob is

$\dfrac{n_1}{n_1 - n_2}$

$\dfrac{n_1 - n_2}{n_2}$

$\dfrac{n_1^2}{n_1^2 - n_2^2}$

$\dfrac{n_2^2}{n_1^2 - n_2^2}$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

The beats are produced when there is a superposition of two sound waves which will have

same amplitude and same frequency.

different amplitude but same frequency.

same amplitude but slightly different frequencies.

different amplitude and different frequencies.

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

In a pipe closed at one end, air column is vibrating in the fourth overtone so the vibrating air column has '$x$' nodes and '$y$' antinodes. The values of $x$ and $y$ are respectively

$4 , 4$

$4 , 5$

$5 , 4$

$5 , 5$

MHT CET 2026 17th April Evening Shift

MCQ (Single Correct Answer)

-0

Two sounding waves send waves at certain temperature in air of wavelength 50 cm and 50.5 cm repectively. The frequency of sources differ by 6 Hz. The velocity of sound in air at same temperature is

$330 \text{ m/s}$

$313 \text{ m/s}$

$303 \text{ m/s}$

$300 \text{ m/s}$

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