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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.
Q. What is the dissimilarity between Free Electron Theory and Band Theory of solids? Answer:- The Free Electron Theory This theory notifies that metals conduct electric
Derive Zero'th Law Statement: "two systems in thermal equilibrium with a third system separately are in thermal equilibrium with each other". Explanation : If A and B
an orchestra tunes up for the big concert by playing an A, WHICH RESOUNDS WITH A FUNDAMENTAL FREQUWNCY OF 440HZ FIND THE SECOND AND TIRD HARMONICS OF THIS NOTE
It is a measure of the extent up to which a material concentrates electrostatic lines of flux. It is the amount of the stored electrical energy when a potential is applied, relat
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
Like the centre of mass, the moment of inertia is a function of a body that is concurrent to its mass distribution. Moment of inertia gives a measurement of the resistance of a bod
An organ pipe which is open at both ends resonates at its fundamental frequency. Neglecting any end effects, what wavelength is formed by this pipe in this mode of vibration if the
(i) Meter : The presently accepted definition of meter is the length of path travelled by light in space in 1/299,792,458th second. (ii) Kilogram : Kilogram is the fundamental
Q. What is artificial radioactivity? The phenomenon by which still light elements are made radioactive by artificial or induced methods is called artificial radioactivity. α
working and principle
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