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Physics: Core Concepts MCQs

Waraq MDCAT Review: Physics · MDCAT / Pre-Medical · 42 practice questions

1. Kepler third law relates the orbital period squared to:

  1. AThe mass of the planet
  2. BThe speed
  3. CThe density
  4. DThe cube of the semi-major axis
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D. The cube of the semi-major axis T squared is proportional to r cubed.

2. A projectile has maximum range when launched at:

  1. A30 degrees
  2. B45 degrees
  3. C60 degrees
  4. D90 degrees
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B. 45 degrees Range is proportional to sin 2 theta.

3. Total internal reflection occurs when light passes from:

  1. AA denser to a rarer medium above the critical angle
  2. BGlass to glass
  3. CA rarer to a denser medium
  4. DAir to glass
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A. A denser to a rarer medium above the critical angle It is used in optical fibres.

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