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A manufacturer of light bulbs advertises that its 55-W bulb, which produces 800.0 lm of light output, gives almost the similar light as a 60.0-W bulb with an energy savings.
The 60.0-W bulb produces 840.0 lm.
a. Which bulb most efficiently changes electric energy to light?
describe the principle, construction and working of Michelson Interferometer.
how to you calculate the inducatnce on a balanced delta circuit?
What do you mean by dispersion of light? What is deviation given by a thin prism of angle 80 and refractive index is 1.5? For what angle of incidence, Snell's law is not working
sho many examples
Kerr effect (J. Kerr; 1875): The ability of certain substances to refract light waves differently whose vibrations are in distinct directions while the substance is placed wit
Under particular condition, light can also suffer inelastic scattering from molecules in which it's wavelength changes.
Are optical ports compatible? In general no there are optical ports are not compatible. Illuminator manufacturers use an exacting type of optical port to effect the connection
A coil of area 100 cm 2 having 500 turns carries a current of 1mA. It is suspended in a uniform magnetic field of induction 10 -3 Wbm -2 . Its plane makes an angle of 600 with t
Define the merits of ultrasonic magnetostriction method. Merits of ultrasonic magnetostriction method: a. Magnetostrictive materials are simply accessible and inexpensiv
define unlike parallel forces with example
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