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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.
In Bohr's theory of the atom, what force was responsible for holding the electrons in their orbit? Ans: Coulomb force or the force of attraction among the proton (nucleus) a
a) Describe how capacitance of a capacitor depends on area, distance among the plates and on the dielectric material. b) Draw electric field lines of a (i) positive poin
A thermodynamic process, in which the volume of gas always same is known as isochoric process. In this process, the work completed by the body is zero. Therefore from first law
Event horizon: The radius which a spherical mass has to be compressed to transform it in a black hole, or the radius at which space and time switch responsibilities. Once insi
what is meant by lead time of scientific development
Echo: The sound heard after reflection from an obstacle is known as echo.
The Monkey and Zookeeper There is an attractive monkey down at the zoo. The monkey spends most of its day execution from a limb of a tree. The zookeeper feeds the monkey throug
what is the on earth
"At base temperature the volume of a gas differs inversely with pressure". If P and V are volume and pressure of a gas at a given temperature then
Three similar coils, each having a resistance of 8 and an inductive reactance of 8 are connected (a) in star and (b) in delta, across a 415V, 3-phase supply. Measure for
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