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प्रश्न
Fill in the blank.
The first two digits in a 24-hour time format represent the number of ............
उत्तर
The first two digits in a 24-hour time format represent the number of hours.
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संबंधित प्रश्न
The basic unit of speed is ______.
Write true or false.
The S.I. unit of time is hour.
Fill in the blank
If the departure time of a train on a railway ticket is printed as 20:35, then it will depart at ............
A ruler or scale used nowadays to measure length was invented by William Bedwell.
In earlier days, which instruments are used to measure time?
Which alloy is used to make the standard meter rod?
Which of the following cannot be used for the measurement of time?
Fig. 13.4 shows an oscillating pendulum.
Time taken by the bob to move from A to C is t1 and from C to O is t2. The time period of this simple pendulum is
Assertion (A): The SI system of units is the improved system of units for measurement.
Reason (R): The SI unit of mass is the kilogram.
Make a model of a sand clock which can measure a time interval of 2 minutes.
