# 1.rate of evaporation depends on a)surface area of liquid b)temperature c)nature of liquid d)material of the container 2.radius of curvature of a concave mirror is 20cm. if an object is placed on principle axises, 12cm away from principle focus then image is formed a)on c b)on F c)between c&f d) between p&e3.water added to the quick lime .this reaction is a)photo chemical reaction b)photo reaction c)endothermic reactiond)exothermic reaction

2
by 012345

2015-10-17T14:39:47+05:30

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Rate of evaporation depends on surface area of the liquid.

R = 20cm
f = R/2 = 10cm
object is placed at 12cm.
So it is between focus and centre of curvature.
Image will be formed between C and infinity.

Heat is generated in this reaction.
Okiee.... But U should mention about (b) option , Both can be correct
I can give argument for answer A, B, C and D. all can be correct.
Yeah... :P i m also saying this
ohh... gudd... ^_^
• Brainly User
2015-10-17T14:57:23+05:30

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Option a) , option d), option d)
i hope this useful for u