A student performs an experiment in his college laboratory to determine the specific heat of water by electrical method. At the end of experiment, the graph that he drew betweentemperature (T) and time (t) was incorrect.Which of the following can be a source of error that caused inaccurate reading during his observation?
Correct answer: C. Greater least count of the thermometer
- A. Loss of heat due to radiation
- B. Large increase in temperature of water
- C. Greater least count of the thermometer
- D. Non-steady voltage of the power supply
Explanation
The correct answer is option C: Greater least count of the thermometer. In experiments involving precise temperature measurements, having a greater least count on the thermometer can introduce errors in the readings, resulting in an incorrect graph. The other options, such as loss of heat due to radiation, large increase in temperature of water, and non-steady voltage of the power supply, are less likely to directly cause inaccuracies in the graph between temperature and time in this specific experimental setup.
Last updated
Related questions
A student makes measurements from which she calculated the speed of sound as 321 ms-1 . She estimates that the result is accurate to +3% or -3% . Which of the following give results expressed to the appropriate number of significant figures?
A systematic error can be removed by
In a champions' trophy of dart match, a player was given three chances to hit the centre target with darts. He managed to hit all the darts close to each other but away from the centre.The given case depicts that the player's shots were
Random errors can be reduced byI. taking zero correctionII. taking mean of several measurementsIII. comparing the instrument with a more accurate one
Random errors can be reduced byI. taking zero correctionII. taking mean of several measurementsIII. comparing the instrument with another more accurate one