NEET 2022, Physics Q33: Units And Dimensions
NEET2022Physics
Q.
The area of a rectangular field (in m) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is :
- A
1382
- B
1382.5
- C
- D
Solution
Area m.
Rule for multiplication: the answer should carry as many significant figures as the operand with the fewest. Here 25 has 2 significant figures and 55.3 has 3.
Rounding 1382.5 to 2 significant figures gives m.
Concept behind this question
Units And DimensionsNotes, formulas and examples →More previous year questions on Units And Dimensions
Practice more Physics
Concept-wise practice with instant solutions on Fundamenthol.
Start practicing →