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PHYSICS CH 1 Measurement — Science STD 9 — Question

Tamilnadu BoardEnglish MediumSTD 9SciencePHYSICS CH 1 Measurement1 Mark
MCQ
Assertion (A): Distance between two celestial bodies is measured in terms of light year.
Reason (R): The distance travelled by the light in one year is one light year.
  • A
    Both A and R are true but R is not the correct reason.
  • B
    Both A and R are true and R is the correct reason.
  • C
    A is true but R is false.
  • D
    A is false but R is true.
✓

Answer

Both A and R are true and R is the correct reason.

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