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Quantum Theory of Light:
Wave theory failed to describe some new effects in 19th century. A German Physicist Max Plank gave theory about the nature of light.
1. Light is emitted from a source in tiny packets of energy or Quanta.
2. These energy packets or bundles of light known as Photon.
3.The light is emitted and absorbed in the form of Photons.
4.The energy possessed by a photon depends upon its frequency
A two farad and a four farad capacitor are connected in series. What single capacitance is "equivalent" to this combination? A 2-farad and a 4-farad capacitor are connected in
a compreesed spring is used to send a cart around circular loop what is the friction
What is hologram? Holography When an entity is photographed by a camera a two dimensional image of three dimensional objects is obtained. A three dimensional image of
FARADAYS LAW: When the magnetic flux through the coil is made to vary, an emf is induced in the coil. The magnitude of the induced emf is proportional to the rate of change of
projectile down an inclined plane
A ray of light falls on a glass slab of refractive index u.if the reflected and refracted rays are mutually perpendicular to each other,find the angle of incidence. Ans) let i b
A UNIFORM ROD OF MASS M, HINGED AT ITS UPPER END, IS RELEASED FROM REST FROM A HORIZONTAL POSITION. WHEN IT PASSES THROUGH THE VERTICAL POSITION FIND THE FORCE ON THE HINGE.
How a CPH products? Answer; no time has passing of a CPH. Thus, CPH exists and never decay.
Q. An electron beam is accelerated through a potential difference of 104 volt. Find the de Broglie wavelength. λ = 12.27 A o / √V λ = 12.27 A o / √10 4 = 0.1227
Q. A capacitor of capacitance 2 μF is in an ac circuit of frequency 1000 Hz. If the rms value of the applied emf is 10 V, find the effective current flowing through the circuit.
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