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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?
please explain the al applications of gauss''s law
Illustrate which atomic model did Erwin Schrodinger create? Answer:- Schrödinger's wave equation was on the basis of Heisenberg uncertainty principal that the position and
Physical principle of nuclear medicine imagining: Since the gamma camera obtain the image in less time, it is usually preferred over the rectilinear scanner Thyroid imagining
Q. In the given circuit, calculate the current through the circuit and mention its direction . Let the current be I. 5I + 10 I + 5 I = 10 + 20 that is 20 I = 30 Current I =
what is total internal reflection ?
A 7.25-g bullet is fired from a gun. The muzzle velocity of the bullet is 223 m/s. Suppose that the bullet accelerates at a constant rate along the barrel of the gun before it
The neutral point in an electrostatic field appears to have a resultant potential. why is this so?
Q. A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is (a)a convex len
Q. What is fluorescence? When an atomic or else molecular system is excited into higher energy state by absorption of energy it returns back to lower energy state in a time les
Q. A beam of electrons travelling with a speed of 4 X 10 7 ms -1 is projected normal to a magnetic field of B = 10 -3 Wb m -2 . What is the path of the beam in the magnetic fiel
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