June 2012 Flashcards

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1
Q

How to find refractive index?

A
  • Repeat.
  • Vary i to obtain more values.
  • plot graph of sin i against sin r.
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2
Q

Why do beta and alpha have different penetrating powers?

A
  • Alpha particles have less penetrating powers.
  • Alphas have more charge.
  • Alphas cause more ionisation.
  • Alphas have more mass.
  • Force on alpha particles is larger.
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3
Q

What are magnetic field lines?

A

Lines that show direction of magnetic field.

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