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Question 30114
JEE Physics · Medium

Errors and Measurements: Error in Product MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Error in ProductMediumQuestion 30114

Question

If percentage error in length is 2% and in breadth is 3%, the percentage error in area (length × breadth) is:
  1. A
    1%
  2. B
    5%
    Correct
  3. C
    6%
  4. D
    1.5%

Correct answer

5%

Explanation

For a product, relative (percentage) errors add: %error in A = %error in L + %error in B = 2 + 3 = 5%.

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