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Describe the simple devices that generate electricity in daily life.

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Identify the types of lenses used for various purposes in daily life.

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Describe components that would be needed to turn A.C to D.C.

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Elaborate the working of power plant generators?

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Define alternating current(A.C)?

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Differentiate between different types of lenses.

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State how output component in various devices could be used in the schools and surroundings

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Describe development of tools and technologies used in space exploration.

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Compare and contrast the working of human eye with the lense camera.

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What is real and virtual image? Why is real image not formed by concave lense? Explain the answer by ray diagram

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Explain how lenses are used to correct short sightedness and long sightedness.

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Describe the defects of human eye

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Explain the types of energy being used in power station.

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What types of problems can be faced while generating electricity?

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What is atmospheric pressure .Also give its formula?

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State Pascal's law?

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Shortly describe the gas pressure in a container

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Why sections of a railway track are not welded together?

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Why some space is left while filling soda water bottles ?

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Define pneumatics?

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