The amount of extension in an elastic string varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, what would produce an extension of 17.4 cm?

The amount of extension in an elastic spring varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, then what weight would produce an extension of 17.4 cm?

The amount of extension in an elastic spring varies directly with the weight hung on it. If a weight of 250 gm produces an extension of 3.5 cm, find the extension produced by the weight of 700 gm.

The fundamental frequency of a string stretched with a weight of 4 kg is 256 Hz . The weight required to produce its octave is

When a load of 10 kg is hung from the wire, then extension of 2m is produced. Then work done by restoring force is

In Searl's experiment, which is used to find Young's Modulus of elasticity, the diameter of experimental wire is D = 0.05cm (measured by a scale of least count 0.001cm ) and length is L = 110cm (measured by a scale of least count 0.1cm ). A weight of 50N causes an extension of X = 0.125 cm (measured by a micrometer of least count 0.001cm ). find the maximum possible error in the values of Young's modulus. Screw gauge and meter scale are free error.

An queous solution containing 2.14 g KIO_3 was treated with 100 ml of 0.4 M Kl solution, the weight of I_2 produced is-

When a load of 5kg is hung on a wire then extension of 30 cm take place then work done will be :-

A wire of uniform cross-section is stretched between two points 100cm apart. The wire is fixed at one end and a weight is hung over a pulley at the other end. A weight of 9kg produces a fundamental frequency of 750Hz . (a) What is the velocity of the wave in wire? (b) If the weight is reduced to 4kg , what is the velocity of wave?

Shown in the figure is rigid and uniform one meter long rod AB held in horizontal position by two strings tied to its ends and attached to the ceiling . The rod is of mass 'm' and has another weight of mass 2 m hung at a distance of 75 cm from A . The tension in the string at A is :

If extension in the spring at equilibrium position is 6 cm then acceleration of block if it is released by further stretching 4 cm.