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Which one of the following statements is incorrect?

  • a)
    Direct and indirect methods are used for the measurement of physical quantities.

  • b)
    Scientific notation and the prefixes are used to simplify numerical computation.

  • c)
    A dimensionally correct equation need not be a correct equation.

  • d)
    The SI units is based on six base units.

Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which one of the following statements is incorrect?a)Direct and indire...
Incorrect Statement:



  • 4. The SI units are based on six base units.



The SI system actually relies on seven base units:



  1. Meter (m) for length

  2. Kilogram (kg) for mass

  3. Second (s) for time

  4. Ampere (A) for electric current

  5. Kelvin (K) for thermodynamic temperature

  6. Mole (mol) for amount of substance

  7. Candela (cd) for luminous intensity



Correct Statements:



  • 1. Direct and indirect methods are used for the measurement of physical quantities. (True - We can measure directly or use indirect methods like displacement for volume.)

  • 2. Scientific notation and the prefixes are used to simplify numerical computation. (True - They help express large/small numbers conveniently.)

  • 3. A dimensionally correct equation need not be a correct equation. (True - Matching units doesn't guarantee a factual equation.)

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Community Answer
Which one of the following statements is incorrect?a)Direct and indire...
SI Units and Base Units

SI units (International System of Units) are the most commonly used system of units in the world. It is a modern form of the metric system and is based on seven base units, which are:

1. Meter (m) for length
2. Kilogram (kg) for mass
3. Second (s) for time
4. Ampere (A) for electric current
5. Kelvin (K) for temperature
6. Mole (mol) for amount of substance
7. Candela (cd) for luminous intensity

Incorrect Statement

The statement "The SI units is based on six base units" is incorrect. The SI units is based on seven base units, as mentioned above. Therefore, option 'D' is the incorrect statement.
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Which one of the following statements is incorrect?a)Direct and indirect methods are used for the measurement of physical quantities.b)Scientific notation and the prefixes are used to simplify numerical computation.c)A dimensionally correct equation need not be a correct equation.d)The SI units is based on six base units.Correct answer is option 'D'. Can you explain this answer?
Question Description
Which one of the following statements is incorrect?a)Direct and indirect methods are used for the measurement of physical quantities.b)Scientific notation and the prefixes are used to simplify numerical computation.c)A dimensionally correct equation need not be a correct equation.d)The SI units is based on six base units.Correct answer is option 'D'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following statements is incorrect?a)Direct and indirect methods are used for the measurement of physical quantities.b)Scientific notation and the prefixes are used to simplify numerical computation.c)A dimensionally correct equation need not be a correct equation.d)The SI units is based on six base units.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following statements is incorrect?a)Direct and indirect methods are used for the measurement of physical quantities.b)Scientific notation and the prefixes are used to simplify numerical computation.c)A dimensionally correct equation need not be a correct equation.d)The SI units is based on six base units.Correct answer is option 'D'. Can you explain this answer?.
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