Free physics question bank
Error and its addition ,subtraction,multipication and division questions with solutions
Practice Unit dimension and error for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 40 questions
- MCQmediumUnit dimension and error
The time period of a simple harmonic oscillator is
T = 2π√(m/k).
The measured value of mass m of the object is 10 g with an accuracy of 10 mg, and time for 50 oscillations of the spring is found to be 60 s using a watch of 2 s resolution. Percentage error in determination of spring constant k is _______ %.
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JEE Mains 202628 January Evening Shift
Open question & full solution → - MCQeasyUnit dimension and error
The diameter of a sphere is measured with a percentage error of 2%. What is the corresponding percentage error in the calculated volume of the sphere?
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JEE Mains 2026 6 April Evening Shift
Open question & full solution → - MCQeasyUnit dimension and errorOpen question & full solution →
A length is measured as (5.00 ± 0.02) cm. The percentage error is:
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- MCQeasyUnit dimension and errorOpen question & full solution →
The time period of a simple pendulum is T = 2π√(L/g). If L is increased by 4% and g decreases by 2%, approximate percentage change in T is:
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- IntegereasyUnit dimension and error
A physical quantity C is related to p, q, r and s by C = pq²/(r³√s). The percentage errors in p, q, r and s are 1%, 2%, 3% and 2% respectively. Find the percentage error in C.
JEE Mains 2025 3 April Evening Shift
Open question & full solution → - MCQeasyUnit dimension and errorOpen question & full solution →
For R = V/I, maximum errors in V and I are 3% and 2%. Maximum percentage error in R is:
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- MCQdifficultUnit dimension and errorOpen question & full solution →
A quantity is calculated as Q = A² - B², where A = (10.0 ± 0.1) and B = (9.0 ± 0.1). The maximum percentage error in Q is:
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- MCQeasyUnit dimension and errorOpen question & full solution →
If y = A²B³/C¹ᐟ² and maximum percentage errors in A, B and C are 1%, 2% and 4%, respectively, maximum percentage error in y is:
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- MCQeasyUnit dimension and error
A physical quantity Q is found to depend on quantities a, b, c by the relation Q = a⁴b³/c². The percentage error in a, b and c are 3%, 4% and 5% respectively. Then, the percentage error in Q is :
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JEE Mains 2024 29 Jan Evening Shift
Open question & full solution → - MCQdifficultUnit dimension and errorOpen question & full solution →
Two resistors R₁ = (20 ± 1) Ω and R₂ = (30 ± 3) Ω are connected in parallel. The maximum percentage error in their equivalent resistance is:
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