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Name the instrument which has the least count
1 mm
A microscope has its main scale with 20 divisions in 1 cm and vernier scale with 25 divisions, the length of which is equal to the length of 24 divisions of main scale. The least count of microscope is
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Two simple pendulums A and B have equal lengths, but their bobs weigh 50 gf and 100 gf, respectively. What would be the ratio of their time periods? Give reasons for your answer.
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A body measures 25 m. State the unit and the magnitude of the unit in the statement.
Name the convenient unit you will use to measure:
width of a book
Name the most convenient unit of mass you will use to measure:
Mass of small amount of medicine.
Amongst the unit of volume which is most suitable for measuring:
Volume of air in the room
