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Refractive Astronomical Telescope:
It is an optical instrument which is used to see heavenly bodies such as stars, moon and planets is known as telescope.
Astronomical telescope having of a long metallic tube of variable length, two converging lens are mounted at its two ends.
Convex lens of large focal length and big aperture is known as objective.
Convex lens of shorter focal length and large aperture is known as eye piece.
Working:
The objective forms a real and inverted image of the object. This image is very small as compared to the object. The eye piece is used as magnifying glass. The final image is inverted and brighter than the object.
candela; cd The basic SI unit of luminous intensity described as the luminous intensity in a given direction of a source which emits monochromatic photons of frequency 540 x 1
Assume a 55.0-kg ice-skater, who was initially at rest, fires a 2.50-kg gun. The 0.045-kg bullet leaves the gun at a velocity of 565.0 m/s. What is the velocity of the ice-
Does the moment of inertia of a cylinder change if the direction of the rotation axis is changed, but it still goes through the center of mass?
Exhaust gas temperature Monitoring of the temperatures within the engine core is performed by the exhaust gas temperature system. The operating limits of the engine, and monit
When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20 x 10^6 J/kg and the boling point is 120Degrees C. At this pressure, 1.00 kg of water has a volum
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A block of mass m is tied to a cord of length L that is pivoted at the center of a frictionless table. A second block of mass m is tied to the ?rst block also on a cord of length L
LIST DIFFRENT THEM
How long does it take for reach that speed
Physics is one of the types of science. Science works according to scientific method . The scientific method accepts only logic, reason, and experimental evidence to tell betw
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