Practice Questions

The amplitude of a driven oscillator becomes maximum at a particular frequency known as

According to Galilean transformation equation what is invariant?

The operation by square of j vector operates on a vector rotates it through an angle

Rotation axis coupled with a translation parallel to the rotation axis will give rise to a symmetry  operation known as

Percolation is the process by which water moves downward through the soil, particularly through pores or spaces between soilparticles. 
This process allows water to spread quickly and evenly throughout the soil,ensuring that plants can access moisture and nutrients at various depths.

"Through which process does water spread quickly in soil?"

In an electric motor, the split ring commutator reverses the direction of current, allowing for continuous rotation of the motor in one direction
A split-ring commutator is essential in a d.c. motor because it reverses the direction of current in the coil every half turn. 
This ensures that the torque acting on the coil is always in the same direction, allowing continuous rotation.

The part of an electric motor that reverses the direction of flow of current in it is?

A hydroelectric power generator works on the scientific principle of converting gravitational potential energy into electrical energy using flowing water
Hydroelectric power is produced by the gravity of falling water.
In the hydroelectric power plant, more electrical power can be generated, if waterfalls from a greater height because the rise in water level causes the increase in potential energy of water.
It flows from a higher position more amount of kinetic energy is formed by the conversion of higher potential energy and this kinetic energy in the form of moving water can produce more electrical power.
The Koyna Hydroelectric Project is the largest completed hydroelectric plant in India. Its power capacity is 1920 megawatts.
The first hydroelectric power station in India was established at Darjeeling.

On which of the following scientific principles does a hydro electric power generator work?

The average velocity of an object is calculated by the formula (x2 - x1) / (t2 - t1)

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