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Which is factual of the light from an actual physical object whose image is formed by a single thin lens?
Ans:
That's what light perform when it leaves a point on an object. It diverges. Regard as two (light) wave crests leaving a point on the object at the same time each on a different straight line path away from the point. The more time those wave ridges have been travelling the farther they aren't only from their common point of origin but from each other.
Resistivity of conductors is most affected by (A) Composition. (B) Temperature. (C) Pressure. (D) Current. Ans: Resistivity of conductors is most
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Illustrate a labelled diagram of Hertz's experimental set-up to produce electromagnetic waves. Describe the generation of- electromagnetic waves using this set-up.
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Q. In Young's double slit experiment the distance between the slits is 1.9 mm. The distance between the slit and the screen is 1 m. If the bandwidth is 0.35 mm Compute the waveleng
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Suppose you blow the top of a bottle and hear a resonance sound (standing wave). The length of the bottle is about 25cm. If the speed of sound in air is about 340 cm/sec., what i
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