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Explain the exact process of Neodymium-Yttrium-Aluminium-Garnet Laser.
While the flash lamp is switched start, the intense beam of white light through the lamp excites the Nd3+ ions leading to population inversion and at last one can acquire the laser radiation at the wavelength of 1.06 µm. The energy level diagram defining the exact process occurred into this type of laser is demonstrated here as given below:
Cannon of mass 5m (having a shell of mass m) is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the horizontal at a velocity u relative to
A long solenoid is fabricated by closely winding a wire of radius 0.5 mm over a cylindrical nonmagnetic frame so that the successive turns nearly touch every other. What would be t
A Decibel meter reads 140 dB for a sound source at 20''c at 60 % relative humidity. It also records sound pressure for 140 dB as 200 pascals what will it read( decibel meter) at 4
INSTANTANEOUS VELOCITY: The velocity of a body at a certain instant of time is known as instantaneous velocity.
Which has additional rotational kinetic energy an object with a rotational inertia of 4 kg·m 2 and an angular velocity of 8 rad/s or else an object with a rotational inertia of 8
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 emi
A piping system is shown below. Flow is from A to D and minimum pressure to be maintained is 20 psi. Pipe Length (ft) Diameter (in) Flow r
Explain about the monochromaticity of laser. Monochromaticity: The light emitted through a laser is monochromatic, that is this is of one wavelength (colour). Although in ca
An ore sample weighs 17.50 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 11.20 N. Find the total volume and the d
Di - Electric: The insulator used among the plates of a capacitor is known as Di-electric.
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