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qUESTIONS

Two condensers C₁ and C2 in circuit are joined as shown. The potential of point A is V₁ and that of B is V₂. The potential of point D will be

A hollow cylinder has a charge q coulomb distributed uniformly within it. If ϕ is the electric flux in units of voltmeter associated with the curved surface B, the flux linked with the plane surface A will be

The capacities of three capacitors are in the ratio 4 : 3 : 2. Their equivalent capacity when connected in parallel is 105/13 µF more than that when connected in series. The individual capacitors are of values in µF as

Consider the following statements about stationary waves: The distance between two adjacent nodes or antinodes is equal to λ/2 (λ= wavelength of the wave) B.A node is always formed at the open end of the open organ pipe. Choose the correct option from the following nodes

The equation of the standing wave y= 0.02 cos 2πx/60 sin(150πt) metre. The amplitude of vibration of a particle at a distance of 10 meter from the origin is: (cos 60°=sin 30°= ½)

An air column in a pipe open at one end of length 24 cm resonates with a tunning fork of frequency 320 Hz. If end correction is 1 cm, velocity of sound is

The frequency of two tuning forks X and Y are respectively 1.4% more and 2.5% less than that of the tuning fork Z. When tuning forks X and Y are sounded together, 10 beats/ second are produced. The frequency of tuning fork Z is

A resonance tube closed at one end is of height 1.5m. A tuning fork of frequency 340 Hz is vibrating near the open end of the tube. Water is poured in the tube gradually. The minimum height of air column for which resonance is obtained is (neglect end correction, speed of sound in air = 340 m/s)

The sequence of harmonics of a pipe open at one end and closed at the other end is 250 Hz and 350 Hz respectively. The resonating length of the air column in its fundamental mode will be (Velocity of sound in air = 340 m/s)

A uniform metal wire of length ‘L’, mass ‘M’ and density ‘p’ is under a tension ‘T’. If the speed of the transverse wave along the wire is ‘v’, then area of cross-section of the wire is

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