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The Broken Pencil-Ray Optics
A general classroom demonstration includes placing a pencil (or similar object) within an upright position within a round glass of water. The pencil is then slowly moved across the middle of the glass from a centered position to an off-center position. Since the pencil is moved across the middle of the glass, an interesting phenomenon is observed. The position of the pencil under the water is shifted associative to the position of the pencil above the water - the pencil appears broken.
Figure denotes a rod whose ends are in thermal contact with a hot reservoir at temperature T1 and a cold reservoir at temperature T2. The ends of the rod are covered with insulati
An ice-skater with a moment of inertia of 1.1 kg/m2 starts to spin with her arms extended. After 25 s, she has an angular velocity of 15 rev/s. What is the net torque acting on
Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two
Forward Characteristic of Zener diode Connect the circuit demonstrated in fig (a) using the 5.1 V zener diode. For forward characteristic, reverse the connection of zener di
Electric Field: The electrical field because of a charge can be described as the space around the charge.
In computing the electric field at a point call it point P in the first quadrant of a Cartesian coordinate system because of a continuous charge distribution from 0 to L on the x-a
composition of two SHM at right angle to each other and having time period in the ratio of 1: 2
Defects of Vision Long Sightened When a person can see far objects clearly but cannot see near object clearly then this defect of vision is called as long sightedness.
A medium is known as denser if the velocity of ray in that phase is fewer than the speed of the wave in other phase. In comparison to air velocity of sound is main in water,
The density, ?, of an object is given by the ratio of the object's mass, m, and volume, V, according to the equation ? = m/V. What is the density of a cube that is 1.2 cm on each s
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