Rohit wants to have an erect image of an object, using a converging mirror of focal length 40cm.
i. specify the range of distance where the object can be placed in front of
mirror. give reason for your answer.
ii. will the image be bigger or smaller than the object?

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form