Water kept in an open bowl will quickly evaporate on the moon. Do you agree? Explain logically.
Light travels more quickly through water than through glass. (a) Which is optically denser : water or glass ? (b) If a ray of light passes from glass into water, which way will it bend : towards the normal or away from the normal ?
Three liquids A, B, and C, have boiling points of 900C,540C,400C, respectively. Which of these will evaporate quickly?