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Q. What is microwave oven? How it works?
Microwave oven It is utilized to cook the food in a short time. When the oven is manage the microwaves are generated which in turn produce a non-uniform oscillating electric field. The water molecules in the food that are the electric dipoles are excited by an oscillating torque. Therefore few bonds in the water molecules are broken and heat energy is produced. This is utilized to cook food.
Explain the meaning of Lasers? Lasers use these discrete energy levels in atoms or molecules to build a large population of atoms at an excited energy level that are ready and
Ohm''s law establishment using drift of charge carriers
A rocket weighs 9800N. What applied force gives it a vertical acceleration of 4m/sec/sec?
State the importance of emission and absorption spectra. Derive the mathematical expression for refractive index of material of the prism.
describe the principle, construction and working of Michelson Interferometer.
Q. What are the conditions to achieve the laser action? Conditions to achieve laser action (i) There should be an inverted population that is more atoms in the excited
UNIT: SI unit of force is Newton (N).
6.1 moles of steam at 100 o C are condensed at 100 o C and the resulting water is cooled to 47.1 o C. Calculate the entropy change for this process. (The molar heat capac
What is Otto Cycle? The cycle of a highly idealized gasoline engine can be approximated by the Otto cycle. 1 → 2 and 3 → 4 are adiabatic compression and expansion, respectively
Comparing a DC circuit to the flow of water A normal DC circuit has a DC voltage source lighting a light bulb. Also displays are a hydraulic system in that water drives a turbi
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