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Physics Past Questions

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The critical angle for light travelling from a transparent medium to air s measured as 340. The refractive index of the medium is

  • A. 0.56
  • B. 1.50
  • C. 1.79
  • D. 2.02
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The S.I unit for sound energy is

  • A. Hz
  • B. cd
  • C. dB
  • D. J
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The general definition of elastic modulus is

  • A. \(\frac{stress}{strain}\)
  • B. \(\frac{strain}{stress}\)
  • C. \(stress \times strain\)
  • D. \(\sqrt{\frac{stress}{strain}}\)
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The diagram above illustrates a simple barometer. Which distance measures the atmospheric pressure?

  • A. PQ
  • B. QR
  • C. RS
  • D. QS
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The property of a body to remain at rest or to continue in uniform motion in a straight line is called

  • A. momentum
  • B. Inertia
  • C. impulse
  • D. Energy
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