KVPY2016PhysicsMathematics in Physics
The length and width of a rectangular room are measured to be 3.95 0.05 ~m and 3.05 0.05 ~m , respectively, the area of the floor is
Options
- A12.05 0.01 ~m ²
- B12.05 0.005 ~m ²
- C12.05 0.34 ~m ²
- D12.05 0.40 ~m ²
Correct answer
C. 12.05 0.34 ~m ²
Step-by-step solution
A = B d A = dB + B d d A A = dB B + Bd B d A A = dB B + d = 0.05 3.05 + 0.05 3.95 =0.016+0.012 =0.028 12.05 dA =0.3312.05 0.34 Ans. (C)