1
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

A physical quantity $P$ is related to four observations $a, b, c$ and $d$ as follows:

$$P=a^3 b^2 / c \sqrt{d}$$

The percentage errors of measurement in $a, b, c$ and $d$ are $1 \%, 3 \%, 2 \%$, and $4 \%$ respectively. The percentage error in the quantity $P$ is

A
$13 \%$
B
$15 \%$
C
$10 \%$
D
$2 \%$
2
NEET 2025
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the diameter of a spherical object being measured with the help of a Vernier callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least division in the M.S. is 0.1 cm and the zero of V.S. is at $x=0.1 \mathrm{~cm}$ when the jaws of Vernier callipers are closed. If the main scale reading for the diameter is $M=5 \mathrm{~cm}$ and the number of coinciding vernier division is 8 , the measured diameter after zero error correction, is

A
  4.98 cm
B
5.00 cm
C
5.18 cm
D
5.08 cm
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

In an electrical circuit, the voltage is measured as $$V=(200 \pm 4)$$ volt and the current is measured as $$I=(20 \pm 0.2)$$ A. The value of the resistance is:

A
$$(10 \pm 4.2) \Omega$$
B
$$(10 \pm 0.3) \Omega$$
C
$$(10 \pm 0.1) \Omega$$
D
$$(10 \pm 0.8) \Omega$$
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The pitch of an error free screw gauge is $$1 \mathrm{~mm}$$ and there are 100 divisions on the circular scale. While measuring the diameter of a thick wire, the pitch scale reads $$1 \mathrm{~mm}$$ and $$63^{\text {rd }}$$ division on the circular scale coincides with the reference line. The diameter of the wire is:

A
$$1.63 \mathrm{~cm}$$
B
$$0.163 \mathrm{~cm}$$
C
$$0.163 \mathrm{~m}$$
D
$$1.63 \mathrm{~m}$$
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