Cengage NEET by C.P Singh

Two wires of radii r and 2r respectively are welded together end to end. This combination is used as a sonometre wire kept under tension T. The welded point is midway between the two bridges. What would be the ratio of the number of loops formed in the wires such that the joint is a [...]

A massless rod is suspended by two identical strings AB and CD of equal length. A block of mass m is suspended from point O such that BO is equal to ‘x’. Further, it is observed that the frequency of 1st harmonic (fundamental frequency) in AB is equal to 2nd harmonic frequency in CD. Then, [...]

Two wires of radii r and 2r respectively are welded together end to end. This combination is used as a sonometre wire kept under tension T. The welded point is midway between the two bridges. What would be the ratio of the number of loops formed in the wires such that the joint is a [...]

A stone is hung in air from a wire which is stretched over a sonometre. The bridges of the sonometre are L cm apart when the wire is in unison with a tuning fork of frequency N. When the stone is completely immersed in water, the length between the bridges is ℓ cm for re-establishing [...]

A sonometre wire has a length of 114 cm between two fixed ends; Where should two bridges be placed so as to divide the wire into three segments whose fundamental frequencies are in the ratio 1:3:4? A sonometre wire has a length of 114 cm between two fixed ends; Where should two bridges be placed [...]

Two identical straight wires are stretched so as to produce 6 beats per second when vibrating simultaneously. On changing the tension slightly in one of them, the beats frequency remains unchanged. Denoting by T1 and T2 the higher and the lower initial tensions in the strings, then it could be said that while making the [...]

A 20 cm long string, having a mass of 1.0g, is fixed at both the ends. The tension in the string is 0.5N. The string is set into vibrations using an external vibrator of frequency 100Hz. Find the separation (in cm) between the successive nodes on the string. A 20 cm long string having a [...]

A sonometre wire resonates with a given tuning fork forming standing waves with five antinodes between the two bridges when a mass of 9 kg is suspended from the wire. When this mass is replaced by a mass M, the wire resonates with the same tuning fork forming three antinodes for the same position of [...]

A string under a tension of 100 N, emitting its fundamental note , gives 5 beats/s with a tuning fork. When the tension is increased to 121 N, again 5beats/s are heard. The frequency of the fork is A string under a tension of 100 N again 5beats/s are heard. The frequency of the fork [...]

A tuning fork of frequency 512 Hz is vibrated with sonometre wire and 6 beats per seconds are heard. The beat frequency reduces if the tension in the string is slightly increased. The original frequency of vibration of the string is In order to increase the frequency of transverse oscillations of a stretched wire by [...]