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Assertion: Burns from Boiling water is more serious than steam at same temperature. Reason: Water has higher Latent heat of fusion as compared to latent heat of vaporisation.
Compare latent heat of fusion and vaporization of water.
State the principle of calorimetry.
An object placed in front of a convex lens, forms an image of same size on a screen. Moving the object 12 cm closer to the lens results in the formation of a real image which is three times the size of the object. Calculate the focal length of the lens.
Atmospheric temperature after a hailstorm is greater than the temperature during the hailstorm. State True or False.
Which thermal physical quantity of a frying pan changes by making its base heavier?
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