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A block is considered on a rough horizontal surface. If we give a variable force F on the block and if we enhance the force F continuously then we seem that block remains stationary, which means a similar and opposite force is performing on the block by the contact surface. This force is known as frictional force.
Simple gears With a hammer and a medium-sized nail, make holes in the exact centres of various used bottle caps. Straighten the edges of the caps to make them as round as possi
Randomly polarized light (such as sun light) with intensity of I 0 passes through three polarizers (P 1 , P 2 , P 3 ) consecutively. P 1 and P 3 are stationary, and their polar
Q. What are coherent sources? Two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have a constant phase differ
GYROSCOPES: PRINCIPLES Gyroscopes are rotating masses (usually cylindrical in form) which are deliberately employed because of the particular properties which they demonst
mechanical wave
Newton's Corpuscular Theory: Newton's corpuscular theory of light states that 1. Light is emitted form of tiny particles is known as corpuscles. 2. The corpuscles travel
A bicycle has tires of radius 0.35 meters. If the bicycle is traveling at a constant speed of 7.8 m/s, approximately what angular speed are the tires rotating? a) 85 rev/min b) 197
Huygen's principl e : Huygen's principle states that every point of a wave front behaves as the source of small secondary wavelets which spread out in all directions with a velocit
Explain the Friction Friction is a force that works against all motion. It slows everything down and it is the reason that the motion we are most familiar with always seems to
what is law of momentum?
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