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Q Define threshold frequency?
The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident radiation may be. The threshold frequency is dissimilar for different metals.
Explain Constant voltage system Constant voltage system : In this process voltage is kept constant but results in very huge charging current in the starting when the back emf
Define the Critical Angle and Fiber Optics When light is traveling in an optically dense medium, like water, and comes to the boundary of a less dense medium, like air, there a
Q. What is efficiency of a transformer? Efficiency of a transformer is described as the ratio of output power to the input power. η= output power / input power
Q. What is the Newton meter? Answer:- A unit of energy is as well known as a Joule. When a force of 1 Newton is used on an object for a distance of 1 meter then 1 Joule of
1. Cell growth. if V is the volume of a spherical cell, then, in certain cell growth or for some fetal growth models, the rate of change of V is given by dV/dt =kV2/3, where k
explain spherical capacitor?
How CPH takes spin and converts to graviton? Answer- A CPH Principle says a CPH moves with constant speed as Vc, Vc>c in any inertial frame and any space, therefore that
An electron is in a box of width 3*10^-10m.what are de broglies wavlength and magnitude of momentum of the electron if it is in A)n=1 level B)n=2 level C)n=3 level Ans) use the
An object is thrown at 25 m/s at 39 degrees above the horizontal from a 40m tall cliff. How long is it in the air?
1. How fast must an object travel for its total energy to be (a) 1% more than its rest energy and (b) 99% more than its rest energy. 2. A proton is moving with a constant speed
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