MHT CET 2021 21th September Morning Shift | Waves Question 82 | Physics

In fundamental mode, the time required for the sound wave to reach upto the closed end of pipe filled with air is $$t$$ second. The frequency of vibration of air column is

$$\frac{1}{t}$$

$$\frac{2}{t}$$

$$\frac{3}{t}$$

$$\frac{0.25}{\mathrm{t}}$$

MHT CET 2021 20th September Evening Shift

MCQ (Single Correct Answer)

-0

Which one of the following statements is true?

The sound waves in air are longitudinal while the light waves in air are transverse.

Both light and sound waves in air are transverse.

Both light and sound waves in air are longitudinal.

The sound waves are transverse and light waves are longitudinal.

MHT CET 2021 20th September Evening Shift

MCQ (Single Correct Answer)

-0

Two consecutive harmonics of an air column in a pipe closed at one end are of frequencies 150 Hz and 250 Hz. The fundamental frequency of an air column is

25 Hz

75 Hz

100 Hz

50 Hz

MHT CET 2021 20th September Evening Shift

MCQ (Single Correct Answer)

-0

An air column in a pipe, which is closed at one end will be in resonance with a vibrating tuning fork of frequency 264 Hz for various lengths. Which one of the following lengths is not possible? (V = 330 m/s)

62.50 cm

93.75 cm

156.25 cm

31.25 cm

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