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Q. What is Fresnel diffraction?
a) The source as well as the screen are at finite distances from the obstacle producing diffraction.
b) The wave front suffer diffraction is either spherical or cylindrical.
c) The diffracted rays can't be brought to focus with the help of a convex lens.
It is the demagnetising force which is necessary to neutralize completely the magnetism in the magnetism material after the external magnetic field is reduced to zero.
According to their frequencies, waves are separated into three categories: (1) Audible or sound waves : Range 20 Hz to 20 KHz. These are formed by vibrating bodies like as voc
Ohm''s law establishment using drift of charge carriers
Can you show mathematically that the total energy of a simple harmonic oscillator remains constant?
obtain expression for potential at point due to uniformly chargeddisc
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The measurements taken in Ramdesns eyepiece more worthy (reliable) than Huygens eyepiece. Why? Describe critical angle. show its relationship with refractive index.
Define Teacup Engine? The astronaut was calmly drinking tea at five o'clock galactic time, as was his wont, when he had an urgent situation outside the shuttle and he had to do
the two point charges +10 nano coulomb and -20 nano coulomb are seperated by a distance 0.1m. calculate the neutral poiint along the line joining two charges.
A 35-kg child is riding on a swing that rises to a maximum height of 0.80 m. Neglecting friction, what is the child's gravitational potential energy at the top of the swing?
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