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Snell's Law:
The ratio of sine of angle of incidence to the sine of angle of refraction is constant for all rays passing from one medium to another medium.
That is Sini/Sinr = Constant
This is known as a Snell's law.
EXAMPLES: (i) When the book is lying on a table, it exerts a downward force on the table (because of its weight). This force is known as action. The table exerts an upward forc
quantization of charge
Presbyopia: The accommodation power of a person is lost by which the suffers a long sightedness. It is known as Presbyopia or lack of accommodation.
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A 0.500 kg stone attached to the end of a string is whirled in a vertical circle of radius 1,20 meters. The center of the vertical circle is 1.50 meters above the ground. When the
They are exactly analogous to water pressure and water flow by a hose. That's why flowing electrons is known as a current, just like a water current. Voltage is the electromotiv
Suppose you sound a 1056-Hz tuning fork at the same time you strike a note on the piano and hear 2 beats/second. You tighten the piano string very slightly and now hear 3 beats/s
The current/voltage relationship for two resistors A and B is as shown in Figure. Verify the value of the resistance of every resistor.
Dc machine consists of the following parts: Field system: The object of the field system is to make a uniform magnetic field, within which the armature rotates. It having of
AVERAGE VELOCITY: The ratio of the total displacement to the total time taken by the body is known as average velocity and represented by V ?av.
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