alleryStart learning →Dimensions of frequency:
- T
- T⁻¹
- L
- M
Show answer and solution
Correct answer: B. T⁻¹
Frequency = cycles per second. [ν] = T⁻¹. SI: hertz (Hz).
**Angular frequency:** ω = 2πν, same dimensions T⁻¹.
Indian Navy AA (Artificer Apprentice) Physics and Measurement — practice questions
Explore 43 free Physics and Measurement questions in Indian Navy AA (Artificer Apprentice) Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Physics and Measurement with Quill →Physics and Measurement questions and exercises with answers
Showing questions 1–30 of 43.
Dimensions of frequency:Read the answer and worked solution →In Young's modulus determination: Y = (FL)/(A ΔL). Maximum percentage error if F (force) 1%, L (length) 2%, A 3%, ΔL 4%:Read the answer and worked solution →As per your syllabus, the unit of PLANE ANGLE in SI is which?Read the answer and worked solution →As per your syllabus, Ex 1.1, the surface area of a cube of side 7.203 m to appropriate significant figures is which?Read the answer and worked solution →As per your syllabus, two physical quantities can be added or subtracted only if which condition holds?Read the answer and worked solution →As per your syllabus, Ex 1.5, the period of a simple pendulum T derived from dimensional analysis (l, g, m) gives which form?Read the answer and worked solution →CLASS10 · Physics · Magnetic Effect — Quick True/FalseRead the answer and worked solution →Match the quantity to its dimensional formulaRead the answer and worked solution →True or false: what Aristotle got wrongRead the answer and worked solution →Complete Newton's first lawRead the answer and worked solution →Which law is this?Read the answer and worked solution →MomentumRead the answer and worked solution →True or false: inertia and forceRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every statement the first law licensesRead the answer and worked solution →Flip and pair: name with contributionRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Order the historical argumentRead the answer and worked solution →Tap every SI base quantityRead the answer and worked solution →Match each base quantity to its SI unitRead the answer and worked solution →Base unit or derived unit?Read the answer and worked solution →Complete the structure of a unit systemRead the answer and worked solution →True or false: the SI systemRead the answer and worked solution →Naming the unitsRead the answer and worked solution →True or false: measurement in physicsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →
Worked practice questions
In Young's modulus determination: Y = (FL)/(A ΔL). Maximum percentage error if F (force) 1%, L (length) 2%, A 3%, ΔL 4%:
- 2%
- 10% (= 1 + 2 + 3 + 4)
- 10%
- 6%
Show answer and solution
Correct answer: B. 10% (= 1 + 2 + 3 + 4)
Y has F¹L¹A⁻¹ΔL⁻¹.
ΔY/Y = 1 × 1% + 1 × 2% + 1 × 3% + 1 × 4% = 10%.
(Each exponent is 1 in absolute value.)
As per your syllabus, the unit of PLANE ANGLE in SI is which?
- Degree (°)
- Radian (rad)
- Steradian (sr)
- Gradian (gon)
Show answer and solution
Correct answer: B. Radian (rad)
Your syllabus + Fig 1.1: plane angle = arc/radius → rad.
Supplementary SI unit, dimensionless.
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