Question
Download Solution PDFWhat is the SI unit of specific gravity
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
- Specific gravity: It is also known as relative density, it is the ratio between the density of an object and a reference substance.
- The specific gravity can tell us, based on its value, if the object will sink or float in our reference substance.
- Mathematically it is Specific gravity = Density of substance/density of water.
- It has no dimension.
- Usually, our reference substance is water which always has a density of 1 gram per milliliter or 1 gram per cubic centimeter or 1000 kg /m3.
- The specific gravity can tell us, based on its value, if the object will sink or float in our reference substance.
- From the above, it is clear that specific gravity has no dimension. Therefore option 4 is correct.
Additional Information
- Density: It is defined as the mass of a body per unit volume. We can also say how much mass it can contain in a specific volume.
- As of dense material like Iron takes more mass in a given volume than of wood.
- Mathematically it gives a formula Density (ρ) = mass (m) / Volume (V)
- SI Unit is kg/m3.
- 1m3 = 1000 liters of water.
- As of dense material like Iron takes more mass in a given volume than of wood.
Last updated on Jul 1, 2025
-> JKSSB Junior Engineer recruitment exam date 2025 for Civil and Electrical Engineering has been rescheduled on its official website.
-> JKSSB JE exam will be conducted on 31st August (Civil), and on 24th August 2025 (Electrical).
-> JKSSB JE application form correction facility has been started. Candidates can make corrections in the JKSSB recruitment 2025 form from June 23 to 27.
-> JKSSB JE recruitment 2025 notification has been released for Civil Engineering.
-> A total of 508 vacancies has been announced for JKSSB JE Civil Engineering recruitment 2025.
-> JKSSB JE Online Application form will be activated from 18th May 2025 to 16th June 2025
-> Candidates who are preparing for the exam can access the JKSSB JE syllabus PDF from official website of JKSSB.
-> The candidates can check the JKSSB JE Previous Year Papers to understand the difficulty level of the exam.
-> Candidates also attempt the JKSSB JE Mock Test which gives you an experience of the actual exam.