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What is the difference between an artificial satellite and a natural satellite?Ans) 1:artificial satellites are man made while natural satellite are formed by nature.2:artificial satellites require energy for installation and to rotate around any planet while natural satellites do not need any energy for revolving. 3:artificial satellites move closer than the natural satellite4:moon is a natural satellite whilst telecom satellites are examples of an artificial satellite.
The number of electrons in one molecule of are: (1)22 (2)44 (3)66 (4)88 Ans: 22
A cab driver in a hurry is sitting at a red light. When the light turns green she rapidly accelerates for 3.50 s at 6.80 m/s 2 . The next light is still red. She then slams on
Put a nail in the lower end of a candle. The nail should be just the right weight to make the candle float with its top a little above the surface of the water. Float the candle an
give applications of resonance
Explain about the term simulated absorption in brief. Stimulated absorption: a. For the photon-atom interaction to happen, the energy of the interacting photon h? must match
What is index fiber? How you define the modes in an optical fiber? Give a relation between core diameter and numerical aperture. Ans.: The index profile of a single mode fi
Q. Give the differences between hard X-rays and soft X-rays.
A charged particle is moving in a UNIFORM magnetic field. If the direction of motion of the charged particle is parallel to the magnetic field, explain the shape of the charg
Length contraction
Velocity of light in moving media, Sagnac formula and its application in optical gyroscopes In 1913, the French physicist Georges Signac published some experimental results and
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