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Elaborate the working of power plant generators?

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

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Defiine the unit of pressure?

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What is the atmospheric pressure at ground level?

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Write a note on the following: a) Pipette b)Flasks

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nvestigate the volume of liquid by reading correct meniscus.

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Discuss the thermal expansion of solids with the help of an experiment ?

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Write a detailed note on SI unit and also give its importance?

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identify the damage caused by expansion and contraction in their surroundings and suggest ways to reduce these damages

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Describe the working of thermometer.

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The mass of a bag of floor is 10kg.What is the mass in grams.

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Elaborate the working of aerosols?

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Describe the application of gas pressure

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investigate the means used by scientists and engineers to overcome the problem of expansion and contraction in everyday life.

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Explain the properties of bases/alkalis.Also give uses of calcium hydroxide?

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Describe the importance of exohermic reactions in daily life.

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