List of top Physics Questions on Waves asked in KEAM

If the instantaneous displacement of a wave is $y = 2(\sin 2\pi t + \sqrt{3}\cos 2\pi t)\,cm$, then the amplitude of the wave in $cm$ is

The equation of a transverse wave in a string, $y = 3\sin 2\pi (25t + 0.4x)$ m. The wavelength of the wave is

Two strings of the same material and same length are given equal tension. If they are vibrating with fundamental frequencies \( 1600 \text{ Hz} \) and \( 900 \text{ Hz} \), then the ratio of their respective diameters is

The ratio between the wavelengths of the air column vibrating in the first two modes in an open organ pipe is

If the speed of transverse waves on a stretched wire of linear density \(7\times 10^{-3}\,\text{kg m}^{-1}\) is \(100\,\text{m s}^{-1}\), then the tension in the wire is

If the speed of the transverse wave in a wire under certain tension T is v, then its speed under tension $2T$ (in $ms^{-1}$) is

The principle behind the function of Bunsen burner is

A string of length \( l \) is divided into three segments of lengths \( l_1, l_2 \) and \( l_3 \) with the fundamental frequencies \( n_1, n_2 \) and \( n_3 \) respectively. The original fundamental frequency of the string is given by

A steel rod of length 1 m is clamped at its middle. If the fundamental frequency of vibrations is 3 kHz, then the speed of sound in steel is

Two strings of the same material and same length are given equal tension. If they are vibrating with fundamental frequencies \(1600\) Hz and \(900\) Hz, then the ratio of their respective radii is

A travelling wave in a medium is given by the equation \(y=a\sin(\omega t-kx)\). The maximum acceleration of the particle in the medium is

A transverse wave is propagating on a stretched string whose mass per unit length is $32$ g/m. The tension on the string is $80$ N. The speed of the wave in the string is

Pick out the condition which is not required for the formation of stationary waves

The harmonic mode which resonates with a closed pipe of length 22 cm, when excited by a 1875 Hz source and the number of nodes present in it respectively are (velocity of sound in air = 330 m/s)

A string under tension of 129.6 N produces 10 beats/second when it vibrates along with a tuning fork. When the tension in the string is increased to 160 N, it vibrates in unison with the tuning fork. Then frequency of the tuning fork is