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What will be effect on Newton's rings if:
(a) A little oil (μ=1.65) is introduced between the lens (μ=1.5) and the glass plate (μ=1.75)
(b) A plane mirror is placed instead of the glass plate below the plano-convex lens
(c) The plano-convex lens is raised by height ?h from the surface of plan glass plate
Q. What is an electric dipole? Define: the dipole moment. Two equal as well as opposite charges separated by a very small distance constitute an electric dipole. Instances amm
list the factors used to classify inductors.
increase in potential with the increase in temperature difference of two ends in a solid is called
DC high-current measurement: In common with many simple multimeters, both analogue and digital, the high current range (e.g. 10A) is not only selected using the range selector
Detail about Nicol prism
(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current
State Gauss' theorem in electrostatics. Using this theorem, derive the expression for the electric field intensity at any point outside a uniformly charged thin spherical shell.
Light is quantized. Photons are light quanta. It has zero REST mass. Therefore, it always travels at maximum speed permitted by relativity
Q. A capacitor blocks d.c. but allows a.c. Why? Capacitive reactance XC = 1/ω C = 1 / 2πν C Where ν is the frequency of the a.c. supply. In a d.c. circuit
Suppose that a nickel filter is required to produce an intensity ratio of Cu K a to Cu K ß of 100/1 in the filtered beam. Calculate the thickness of the filter and the transmission
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