in one optical instrument, what is the effect of usingtwo
converging lenses?
A bird sitting on a naked wire carrying current feels quite safe, but when the wire between his feet is cut and joined by a very long loop of wire, the bird dies. Why?
Explain about Dispension of Light ?
The magnitude of electrostatic force between two identical positive ions that are separated by a distance of 5.0 x 10– 10 m is 3.7 x 10–9 N. (a) What is the charge of each ion? (b) How many electrons are “missing” from each ion?
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list and describe the three types of transformer?
Explain what is meant by 4th dimension?
What is the proper definition of light?
Explain the working of basic rubber ink filler
A truck travels 420 m. Each tire on the truck has a diameter of 42 cm. If one revolution of a tire is equal to 2? Times the radius of the tire (in meters), which of the following equations shows how many revolutions each tire makes as the distance is traveled?
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WHICH OF THE FOLLOWING PAIR IS INCORRECT? A) ROENTGEN: X-RAY B) NEWTON: LAW OF GRAVITATION C) FARADAY: DIFFUSION OF GASES D) PASTEUR: BACTERIOLOGY
Considering the specific heat of aluminum is 0.21, iron is 0.10, and lead is 0.03, which metal will show the largest increase in temperature per calorie added to onegram of that metal?
Do radio-waves go in straight line ?