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NEET PHYSICSUNITS AND MEASUREMENTSEasy

Question

One yard in SI units is equal to:

A

1.9144 metre

B

0.9144 metre

C

0.09144 kilometre

D

1.0936 kilometre

Step-by-Step Solution

  1. Identify the Unit: The 'yard' is a unit of length in the Imperial and US customary systems.
  2. Conversion to SI: The SI unit of length is the metre (m).
  3. Conversion Factors:
  • 1 yard = 3 feet.
  • 1 foot = 12 inches.
  • 1 inch = 2.54 cm (exactly).
  • Therefore, 1 yard = 3×12×2.543 \times 12 \times 2.54 cm = 91.44 cm.
  1. Final Calculation: Converting centimetres to metres (1 cm=10−2 m1 \text{ cm} = 10^{-2} \text{ m}): 1 yard=91.44×10−2 m=0.9144 m1 \text{ yard} = 91.44 \times 10^{-2} \text{ m} = 0.9144 \text{ m}
  2. Source Verification: NCERT Appendices explicitly state: 1 yard=36 inches=0.9144 metre1 \text{ yard} = 36 \text{ inches} = 0.9144 \text{ metre} , .

Exam Context & Concepts Covered

This question aligns with the NEET PHYSICS syllabus, specifically targeting concepts from UNITS AND MEASUREMENTS. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.

PHYSICSUNITS AND MEASUREMENTS

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