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A balance trick
Get a smooth metre stick and let it rest lightly on your two forefingers. Place your fingers near the ends of the stick and then move them in the direction of the centre. Where do your fingers meet on the metre stick? Place the finger of your right hand close to the end of the metre stick and the other about half way to the centre on the other side and repeat.
working model
Explain the formation of diffraction pattern due to plane transmission grating. Describe the meaning of missing spectra in the diffraction pattern.
Complementarity principle (N. Bohr) The principle which a given system cannot exhibit wave-like and particle-like both behaviors at the similar time. i.e., certain experiments
What is LASER? describe the construction and working of He-Ne Laser with suitable diagram
Briefly explain how the wavelength of monochromatic light is calculated using Newton's rings arrangement?
Q. What are uses of ultra-violet radiations? Uses of ultra-violet radiations: (i) They are utilized to destroy the bacteria and for sterilizing surgical instruments.
How long does it take for reach that speed
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
A 100 hp car engine operates ata bout 15 percent efficiency. Assume the engine's water temperature of 85°C is it scold-temperature (exhaust) reservoir and 500°C is its thermal "int
what is newton first law of motion
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