NEET UG Units and Measurement — practice questions — page 4

Explore 92 free Units and Measurement questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Units and Measurement questions and exercises with answers

Showing questions 91–92 of 92.

Rounded by significant figures, log10(3.000 x 10^4) is?Read the answer and worked solution →Both factors measured, 1.234 x 2.0 should be reported as?Read the answer and worked solution →

Worked practice questions

Rounded by significant figures, log10(3.000 x 10^4) is?

4.48
4.47712
4.477
4.4771

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Correct answer: D. 4.4771

The mantissa keeps as many figures as 3.000 has, four, so 4.47712... becomes 4.4771.

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Both factors measured, 1.234 x 2.0 should be reported as?

2.468
2.47
2
2.5

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Correct answer: D. 2.5

2.0 has only two significant figures, so the product 2.468 is rounded to 2.5.

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