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Radiography and depletion of Ozone layer:
What is Radiography?
A. The method in which soft X-rays are used in medical diagnosis is called radiography.
What are the uses of Hard x-rays?
A. Hard x-rays are used to determine the structure of materials and to test the materials in industry.
What is the reason of depletion of Ozone layer in atmosphere?
A. The ozone layer is depleted due to the Chemical reactions with fluoro carbons released from aerosol sprays, refrigeration equipments and other pollutants.
the magnetic field at a dictance of 2cm from the axis of a straight conductor carrying current is 12mT.Find the currentin the conductor?
Anti ferromagnetic materials such as chromium have a small but positive susceptibility. They cannot possess any magnetization is the absence of an applied field, in contrast to fer
Demonstration vernier Two pieces of tongued and grooved floor board about 1 m long can be used to make this apparatus. Saw 7 cm off the tongued board and glue it into the groov
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Manganin is an alloy of (A) Copper, manganese and nickel. (B) Copper and manganese. (C) Manganese and nickel. (D) Manganese, aluminium and nickel. Ans:
Motion of an object in a plane is called two dimensional (2-D) motions. For 2-D motion acceleration or velocity can be explained by two elements in any two mutually perpendicular d
Show any two applications of beats. What are "Echelon effects" and "Focusing"?
state and explain malus law?
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Question: A person is putting effort to determine the characteristics of an image formed by a converging lens by means of a ray tracing diagram. The person has sketched one pri
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