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Motion and Measurement of Distances — Science STD 6 — Question

CBSE BoardEnglish MediumSTD 6ScienceMotion and Measurement of Distances1 Mark
MCQ
Which of the following does not express a time interval?
  • A
    A day.
  • B
    A second.
  • C
    A school period.
  • ✓
    Time of the first bell in the school.
✓

Answer

Correct option: D.
Time of the first bell in the school.
Time of the first bell in the school does not express a time interval because it has only a single value of time, while the other quantities like a day, a second and a school period can be divided into a number of shorter periods of time.
Note: A time interval should have atleast two values of time.

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