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Define the terms threshold frequency and stopping potential in relation to the phenomenon of photoelectric effect. How is the photoelectric current affected on enhancing the
(i) frequency
(ii) intensity of the incident radiations and why?
A disc of mass m and radius R is attached to a rectangular plate of the similar mass breadth R and length 2R . Find moment of inertia of this system about diameter of disc. They ar
Define Two-Dipole Interaction? Two classical dipoles with dipole moments μ 1 and μ 2 are separated by a distance R so that only the orientation of the magnetic moments is fre
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
Figure shows a simple model of spring-mass system. The mass is released from the rest with the springs un-stretched. It's downward acceleration is a=9.81 - 15.24y m/s 2 where y is
a jet of engine on a test tube takes in 20kg of air per second at a velocity of 100m/s and burns 0.8kg of fuel per second.after compression and heating the exhaut gases are ejected
Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage
Assume a new planet was discovered to orbit the Sun with a period 5 times that of Pluto. Using the data, measure the average distance from the Sun for this new planet.
Special Theory of Relativity deals with the relativity of motion and of rest is called theory of relativity. In broad sense it divides into two parts (1) GTR (General Theory o
Over the universe differ in magnitude from place to place. It is get that many places have the similar value of magnetic components. The lines are illustrated connecting all places
A simple rotation machine Secure a breast-drill or hand- drill like as the one shown in the diagram. Clamp a small screw eye or cup hook in the chuck of the drill. Join a 30 cm
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