AS Physics OCR Revision

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1. What pattern does an electron form when aimed at a double slit?

  • One slit
  • Two diffraction patterns overlapping
  • A diffraction pattern when unobserved, and two slits when observed
  • No pattern forms
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Other questions in this quiz

2. What is Planck's constant?

  • 6.626x10^34
  • 6.634x10^-34
  • 1.19x10^-19
  • 6.02x10^26

3. What is the formula for calculating the wavelength in the double slit experiment?

  • lambda = ax/dsin(theta)
  • lambda=dsin(theta)/ax
  • x=a*lambda/dsin(theta)
  • x=dsin(theta)/a*lambda

4. What is a vector?

  • A force with a direction and magnitude
  • A force with a direction
  • A force with a magnitude
  • A force that only has a vertical component

5. What is the Ultraviolet Catastrophe?

  • The ionising nature of ultraviolet light that can cause harm to humans
  • The graph showing the wavelengths of the blackbody diagrams that showed unexpected bell-shaped curves instead of an infinite negative correlation
  • The diffraction pattern caused by shining an ultraviolet light at a double slit
  • The process of electrons being knocked off and causing an electric current to flow when an ultraviolet light is shined on the surface of a conductive, negatively charged metal

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