Question
Which of the following equipment is used for the
measurement of specific heat?Solution
A calorimeter is a device used to measure the heat exchanged in a physical or chemical process. The specific heat of a substance is the amount of heat required to raise the temperature of a unit mass of the substance by one degree Celsius. Calorimeters are designed to isolate the system under study from its surroundings and measure the heat changes associated with the process being studied.
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A train crosses a pole in 12 sec, and a bridge of length 170 m in 36 sec. Then the speed of the train is:
The speed of a train is 72 km/hr and it takes 14 seconds to cross a man. Find the time taken by train to cross a platform if the ratio of the length of ...
In a 250-metre race, ‘A’ beats ‘B’ by 16 seconds or 80 metres. Find the time taken by ‘B’ to finish the race.
The average speed of a bus is half the speed of a train. The train covers 5200 km in 13 hours. How much distance will the bus cover in 36 minutes?
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