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If we permit monochromatic light to fall normally on the surface of lens, then circular interference fringes of radius r can be consider in the reflected light. This circular fringes are known as Newton rings
EXAMPLES: (i) A book lying on the table remains at rest until it is listed or pushed by exerting a force. (ii)A rolling ball on the ground comes to rest after covering some
Q. What is Heisenberg's uncertainty principle? Write the three forms of uncertainty relations. Ans. The principle of uncertainty was described by Heisenberg in 1927. Acco
Why does a glass filled with water shatter when you run your finger along the rim of the glass? A piece of crystal stemware has a natural or resonant frequency that can be exc
kilogram; kg: The basic SI unit of mass, that only SI unit which still maintained by a physical artifact: a platinum-iridium bar kept in the International Bureau of Weights an
Two compartments each of 1 m 3 capacity are connected by a valve and insulated from the surroundings and from each other. One compartment contains saturated steam at 683.6 kPa and
Q. Write down two important facts of Laue experiment on X-ray diffraction. The Laue experiment has established subsequent two important facts (1) X-rays are electromagnetic
Beat period : The time interval among two successive beats is called as beat period. Beat frequency : The number of beats given per second is called as beat frequency.
Define term coherence as the characteristics of laser. Coherence: The light from a laser is called be highly coherent that implies the waves of laser light are in similar
Describe the construction and working of a rubby LASER with related diagrams?.
a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer
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