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PHY191


Question: A simple pendulum 50 oscillations in 22.3 s. Find its frequency?
Answer:  2.22 Hz

Question: A spiral spring of length 8 cm extended to 9.2 cm when a load of 1.6 N is applied. What is the force constant of the spring, provided the elastic is not exceeded?
Answer:  133.3 N

Question: The smallest scale division of a stop watch is 0.1 s. Calculate the possible error in the measurement of time recorded as 7.4 s by an experimenter using stop watch.
Answer:  0.05 s

Question: A simple pendulum 50 oscillations in 22.3 s. Find its period?
Answer:  0.45 s

Question: Error due to deterioration in a measuring instrument is known as
Answer:  zero error

Question: To obtain a suitable spread of the plotted points on the graph paper, a suitable must be chosen for each axis
Answer:  scale

Question: To plot the graph of a set of experimetal data, which of the following is NOT necessary?
Answer:  Label the axix with the usual x and y.

Question: in an experiment, measurement of variables were repeated in order to minimize Error.
Answer:  random

Question: The effect of reducing the length of a simple pendulum is to	
Answer:  increase its frequency

Question: A spiral spring of length 13.4 cm is extended to 14.2 cm when a load of 3.2 N is applied. What is its length when a load of 3.4 N is applied?
Answer:  14.35 cm

  


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