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(i) It having of dissimilar bright lines.
(ii) It is given by an excited source in atomic state.
(iii)E.g. Spectrum of excited helium, mercury vapours sodium vapours or atomic hydrogen.
Centrifugal pseudoforce A pseudoforce which occurs while one is moving in consistent circular motion. One feels a "force" directed outward from the center of motion.
Are fibers safe? Fiber optics are passive components, hence do not use power to generate light, like the case with lamps. When light conductors only carry light from one point
is pulling force easy or pushing
an aeroplane is moving horizontally with a velocity of u . it drops a packet from a height h. the time taken the packet in reaching the ground is?
how much power is radiated by a tungsten sphere of radius 16cm at a temperature of 25 degrees Celsius emissivity is 0.35
A scooterist is racing at a speed of 72 km per hour. If the radius of the wheel is 20 cm, find the angular speed of the wheels. Ans) 72kmph=20m/s 20cm=0.2m; v=rw w=v/r w=20/0
You just need to use numerical methods to find temperature distribution in two or three dimensional plate; cylinder, sphere or you can model heat flow in any geometry with boundary
Q. Briefly explain working of Michelsons Interferometer? Michelson designed an instrument for the measurement of wavelength of sodium light, thickness of thin film and for many
A bat emits a sound whose frequency is 142 kHz. The speed of sound in air at 20.0°C is 343 m/s. However, the air temperature is 35°C, so the speed of sound is not 343 m/s. Find the
How much time is required to raise the temperature of the water A family comes home from a long vacation with laundry to do and showers to take. The water heater has been turned
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