NCERT Class 9 Science-Gravitation[Density] [NCERT Based General Studies (GS)]: Questions 1 - 3 of 3
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Question 1
Question MCQ▾
Archimedes Principle applications are:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | To determine the relative density of solids and liquids | |
b. | In designing ships and submarines | |
c. | Working of lactometer, hydrometers etc. | |
d. | All a., b. and c. are correct | |
Question 2
Question MCQ▾
Relative density of a substance is the:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Ratio of the density of the substance to the density of water under similar conditions | |
b. | Mass of a unit volume of the substance | |
c. | Ratio of the mass of a given volume of that substance to the mass of an equal volume of water | |
d. | Both a. and c. are correct | |
Question 3
Question MCQ▾
According to Archimedes Principle whenever an object immersed wholly or partially in a fluid:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | It experiences an downward force of buoyancy due to that fluid and magnitude of this force is equal to the weight of the fluid displaced by it. | |
b. | It experience an upward force of buoyancy due to that fluid and magnitude of this force is the weight of the fluid displaced by it | |
c. | It experiences an upward force of buoyancy due to that fluid and magnitude of this force is equal to the weight of the fluid displaced by it. | |
d. | Question does not provide sufficient data or is vague | |