Question 21 MarkThe speed $5 ms^{-1}$ is less than $25 km h ^{-1}$.AnswerTrue.View full question & answer→
Question 51 MarkThe S.I. unit of density is $g cm ^{-3}$.AnswerFalse. The S.I. unit of density is $Kg m ^{-3}$.View full question & answer→
Question 61 MarkEqual volumes of two different substances have equal masses.AnswerFalseEqual volumes of two different substances have different masses.View full question & answer→
Question 81 MarkA measuring beaker of capacity 200 ml can measure only the volume. 200 ml of a liquid.AnswerTrue View full question & answer→
Question 91 MarkThe S.I. unit of volume is the liter.AnswerFalseExplanation:The S.I. unit of volume is a cubic meter.View full question & answer→