Question

Equal volumes of a liquid of relative density 1.02 and water are allowed to cool from 80°C to 60°C in the

same surroundings. The times taken are 8 mts and 15 mts respectively. The specific heat of the liquid in

cal/gm-°C is

(1) 0.52 (2) 0.81 (3) 1.02 (4) 1.23
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Answer 1

Answer:

if an object of 7 cm heght is placed at a distance of 12 cm from a convex lens of focal length 8 cm foind the position,nature and height of image

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