Q. The lens which is thin at the center but thick at the edges is called

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Q. The plane which passes through focal point and principal axis is known as

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Q. The types of lenses are

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Q. The lens which causes incident parallel rays to converge at a point is called

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Q. The midway point between the lens surfaces on its principal axis is known as

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Q. The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm⁻³. What mass of water was nodded to fill the jar?

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Q. The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm⁻³. What is the density of the air?

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Q. The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm⁻³. What mass of air filled the bottle?

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Q. The SI unit of density is

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Q. The density of pure gold is

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Q. The mass per unit volume is called the substance's

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Q. By dividing total mass by total volume, we can get

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Q. The density of pure water is

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Q. If the volume of a cubical shape is 320500 m³ and mass is 85200 tones, then the density should be

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Q. The density of an object with mass m and volume V can be calculated by

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Q. The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm⁻³.What is the volume of the bottle?

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Q. The distance moved per unit time is known as

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Q. The simple equation for speed is

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Q. To find the speed of a moving object, we use

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Q. If the speed is non uniform, then the graph will be a

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