1 cm 1 cm The oscilloscope time base setting is 05 ms cm 1 and the Y plate

# 1 cm 1 cm the oscilloscope time base setting is 05 ms

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1 cm 1 cm The oscilloscope time-base setting is 0.5 ms cm –1 and the Y-plate sensitivity is 2 V cm –1 . Which statement about the alternating voltage is correct? A The amplitude is 3.5 cm. B The frequency is 0.5 kHz. C The period is 1 ms. D The wavelength is 4 cm. Space for working PMT
6 © UCLES 2014 9702/12/M/J/14 4 A quantity y is to be determined from the equation shown. y = 2 q px The percentage uncertainties in p , x and q are shown. percentage uncertainty p 6% x 2% q 4% What is the percentage uncertainty in y ? A 0.5 % B 1 % C 16 % D 192 % 5 A thermometer can be read to an accuracy of ± 0.5 ° C. This thermometer is used to measure a temperature rise from 40 ° C to 100 ° C. What is the percentage uncertainty in the measurement of the temperature rise? A 0.5 % B 0.8 % C 1.3 % D 1.7 % Space for working PMT