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How far will a force stretch the spring
A certain spring is known to obey Hooke's Law. If a force of 10 newtons stretches the spring 2 meters, how far will a 30 newton force stretch the spring? A

Explain currentcarrying wire
Sketch a graph showing the relationship among the magnetic field around a straight, currentcarrying wire, and the distance from the wire. This is

Power for the circuit
a) A circuit has a voltage of 15V and a current of 2A. the phase angle is 45 degree. Verify the true power of the circuit? (Calculate apparent and true power)

Define band emission spectrum
(i) It having of district bright bands. (ii)It is given by an excited source in molecular state. (iii) E.g. Spectra of molecular NH 3 , CO, H 2 etc.

Dynamic Casimir effect
We can produce energy from dynamic Casimir effect?

How speed is increased by using a lever
Using a lever Determine that the longer end of a lever travels farther and faster than the shorter end when the fulcrum is not in the centre. A baseball or

Explain basic working of interference fi...
Q. Explain basic working of Interference Filter? An interference filter, which reflects one of more spectral lines and transmits others, while maintaining a

Easier to pull a lawn roller than to pus...
Explain why easier to pull a lawn roller than to push it? Explaination : In Pulling, effective weight of lawn mover= mgfsinx In pushing, ef

What is the area of the surface of water...
A small bulb is placed at the bottom of a tank containing water to a depth of 80 cm. What is the area of the surface of water through which light from the bulb

Determine the frequency heard by the eng...
Two trains on separate tracks move toward one another. Train 1has a speed of 140 km/h, train 2 speed of 55.0 km/h. Train 2 blows it shorn, emitting a frequency

What torque is required by the bolt
A force of 25 N is applied vertically at the end of a wrench handle that is 45 cm long to tighten a bolt in the clockwise direction. What torque is required by

Light
diffenrence between pure and impure spectrum.

Find the accelerating force  force
a) What force is needed to give amass of 20kg an acceleration of 30m/s 2 ? b) Find the accelerating force when a car having a mass of 1.7Mg enhances its spe

The galvanometer records a current
A galvanometer together with an unknown resistance in series is linked across two identical batteries each of 1.5V. whenthese batteries are connected in series

Definition of collision
COLLISION: "When two or more bodies come close to each other, so that there is some part of interaction among them, with or without the presence of extern

