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Subsoiling is used to break hard layers in the soil without disturbing the top layer excessively.
What is the magnitude of magnetic force per unit length on a wire carrying a current of 10 A and making an angle of 30° with the direction of a unif...
A body of mass 3 kg is acted upon by two perpendicular forces 9 N and 12 N. Find the resultant of two forces and the acceleration of the body.
A body explodes into three equal fragments, two of which fly off perpendicular to each other with equal speeds. What is the direction of the third frag...
Two identical piano wires have same fundamental frequency when kept under the same tension. What will happen if tension of one of the wire is slightly i...
The speed of a fast moving electron, having total energy of 2 MeV, is nearly:
A spherical ball made of steel when dropped in mercury container will –
A train approaches a stationary observer with a speed of 36 km/h. It emits a sound of frequency 500 Hz. If the speed of sound is 340 m/s, what is the ap...
When a capacitor is fully charged in a DC circuit, the current through it is:
If radius of earth is R then the height ‘h’ at which the value of ‘g’ becomes one-fourth is-
What term refers to the superposition of two or more coherent waves to produce regions of maxima and minima?
