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Electromagnetic waves:
Electromagnetic waves with different ranges of frequency constitute an electromagnetic spectrum. Electromagnetic waves are transverse in nature. Visible spectrum is emitted when excited valence electrons in atoms jump to their normal states. IR rays are emitted by molecules when they change their states of rotational or vibrational motion.
What is dispersion? Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation o
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
It is the property of changing readily from a solid or liquid to a vapour. It is the speed that a chemical compounds evaporates. Higher volatility indicates faster evaporation.
Q. A beam of light converges at a point P. Now a lens is placed in the path of the convergent beam 12 cm from P. At what point does the beam converge if the lens is (a)a convex len
A satellite is orbiting around a planet. its velocity is found to depend upon a.)Radius of orbit b.)mass of planet c.)universal gravitational constant(G) Using dimensional analysis
What is the Ohm Law? Ohm discovered that the amount of current was directly proportional to the voltage (more voltage gives more current) and inversely proportional to the resi
why dark spot appears on newton''s ring?
It normally takes maria 10 minutes to travel 5.0 miles to UTPA along a straight road. Maria leaves home 15 minutes before class begins. Delays caused by a broken traffic light slow
What are the demerits of Huygens' eyepiece? The angles of deviations for violet and red colors of a crown prism are 5.23 o and 5.15 o respectively. Determine the dispersive po
Truck and The Ball Suppose a pickup truck moving along with a constant speed along a city street. Within the course of its motion, a ball is projected straight upwards through
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