The distance between the fixed points of a mercury-in-glass thermometer is 30 cm. Determine the temperature when the mercury level is 10.5 cm above the lower fixed point

  • A 28.6ºC
  • B 30.0 ºC
  • C 35.0 ºC
  • D 40.5 ºC
waec 2022physics

The correct answer is C. 35.0 ºC

\(\frac{10.5-0}{30-0}\) = \(\frac{c-0}{100-0}\)

\(\frac{10.5}{30}\) = \(\frac{c}{100}\)

cross multiply:

10.5 * 100 = 30c

35.0 ºC = c

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