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Q. What is cut-off or stopping potential?
The minimum negative (retarding) potential specified to the anode for which the photo electric current becomes zero is called the cut-off or stopping potential.
A 150-kg roller-coaster car climbs to the top of a 91-m-high hill. How much work is completed against gravity as the car is lifted to the top of the hill?
Q. What are the methods of inducing emf in a circuit? The induced emf is able to be produced by changing a) The magnetic induction (B) b) Area enclosed by the coil (A) f
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Define the Nuclear Power As an energy source, nuclear power is an alternative to fossil fuels. Controlled nuclear chain reactions are used to generate electricity in a safe ma
Resistance measurements: An example of how to make AC voltage measurements is shown in the diagram below. Once again, the red and black test leads are connected to the '+' and
When a metal is illuminated with radiation with a wavelength of 152 nm, photoelectrons are ejected with a velocity of 7.9 x 10 5 m/s. What is the work function, in eV, of th
Q. Illustrate what does gravitational force depend on? Answer:- The Gravitational force depends on distance as well as mass. Therefore the formula for calculating gravitat
Explain Cement concrete Cement concrete is a mixture of cement, sand, pebbles or crushed rock and water, which where placed in the skeleton of forms and permitted to cure becom
As electron hole pair (because of thermal collisions) is continuously formed in the depletion region. These are a regular flow of electrons in the direction of the N-side and of ho
Determination of packing fraction of diamond The co-ordination number of an atom in diamond structure is 4 as can be seen from the unit cell of diamond and is loosely packed.
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