A sonometer wire supports a 4 kg load and vibrates in fundamental mode with a tuning fork of frequency 416. Hz. The length of the wire between the bridges is now doubled. In order to maintain fundamental mode, the load should be changed to (a) 1 kg (b) 2 kg (c) 8 kg (d) 16 kg.

Q1: A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quality sold at 18% profit is: A) 400 kg B) 560 kg C) 600 kg D) 640 kg E) None Of These

A block of mass 2.0 kg is moving on a frictionless horizontal surface with a velocity of 1.0 m/s towards another block of equal mass kept at rest. The spring constant of the spring fixed at one end is 100 N/m. Find the maximum compression of the spring Figure

16 k g and 9 k g are separated by 25 c m. The velocity with which a body should be projected from the midpoint of the line joining the two masses so that it just escape is : √ g; √ 2 g R; 2 √ G; 2 √ g

Hence, 63 kg of sugar costing Rs.9 per kg must be mixed with 27 kg of sugar costing Rs.7 per kg, so that there may be gain of 10 % by selling the mixture at Rs.9.24 per kg

Its mass is 0.16 kg and length is √ 3 m. Two particles, each of mass is 0.08 kg are moving on the same surface and towards the bar in a direction perpendicular to the bar, one with velocity 10 ms − 1 and the other with 6 ms − 1 as shown in the Figure. The first particle strikes the bar at point A and the other at point B. Point A and B ...

A tea seller mixes two kinds of tea one at Rs 15 Kg and other at Rs 20 per Kg. In what ratio should he mix them to get the price of mixture at Rs 16.50 per Kg?

a body of mass 4 kg initially at rest. A force acts on it for 4s and then ceases to act. The body covers 4m in 4s. Find the force acting on the body for the first four seconds and the total distance covered by it for 8s of the total journey.

A disc has a mass of 16 kg and radius 25 cm and is to be rotated about an axis centre and perpendicular to its plane. what torques will increase its angular velocity to 8 π rad/sec in 8 seconds:

In an experiment with a beam balance on unknown mass m is balanced by two known mass m is balanced by two known masses of 16 kg and 4 kg as shown in figure. Find the value of unknown mass m in kg View Solution