Class 9 Science Chapter 11 Work and Energy
Class 9 science important questions with answers pdf
NCERT Solutions Class 9 Science Chapter 11
NCERT questions of science class 9 Chapter 11
Important questions Science NCER
Class 9 Study 2022-2023
NCERT Class 9 Science
Can you determine the density of a porous solid by using a spring balance and a measuring cylinder? Give reasons in support of your answer.
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No, we cannot determine the density of a porous solid by using a spring balance and a measuring cylinder because
(a) the porous solid have a void space in the form of pores in it.
(b) it will absorb some water.
(c) absorption of water by the porous solid may affect the
(i) change in its weight and
(ii) volume of water displaced by it.