A physical quantity y is represented by the formula y = m 2 r - 4   g x l - 3 2 If the percentage…

A physical quantity y is represented by the formula y=m2r-4 gxl-32 If the percentage errors found in y, m, r, l and g are 18, 1, 0.5, 4 and p respectively, then find the value of x and p.
  1. 5 and ±2
  2. 4 and ±3
  3. 163 and ±32
  4. 8 and ±2

Solution

Δyy=2Δmm+4Δrr+xΔgg+32Δll

18=2(1)+4(0.5)+xp+32(4)

8=xp

By checking from options.

x=163, p=±32

Asked in: JEE Main 2021 (27 Jul Shift 2)

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