NEET-XII-Physics
qstns with ansrs year:2022
- #42The area of a rectangular field (in `` m ^{2} `` ) of lengt `` 55.3 \,m `` and breadth `` 25\, m `` after rounding off the value for correct significant digits is :
(A) `` 14 \times 10^{2} ``
(B) `` 138 \times 10^{1} ``
(C) `` 1382 ``
(D) `` 1382.5 ``digAnsr: AAns : Area `` = `` Length `` \times `` Breadth
`` =55.3 \times 25 ``
`` =1382.5 ``
`` =14 \times 10^{2} ``
Resultant should have `` 2 `` significant figures.