JEE Physics

StemEZ

Chapter 21

Experiment - Vernier Calipers - all with Video Answers

Educators

Chapter Questions

Problem 2761

What is the least count of the vernier calipers?
(A) Smallest division on the vernier scale.
(B) difference of the smallest division on the main scale and the smallest division on the vernier scale.
(C) sum of the smallest division on the main scale and the smallest division on the vernier scale.
(D) smallest division on the main scale.

Narayan Hari

Narayan Hari

Numerade Educator

Problem 2762

What is the least count of commonly available vernier?
(A) $0.01 \mathrm{~cm}$
(B) $0.001 \mathrm{~cm}$
(C) $0.0001 \mathrm{~cm}$
(D) $0.1 \mathrm{~cm}$

Narayan Hari

Numerade Educator

Problem 2763

When the zero mark on the vernier scale lies towards the left side of the zero mark of the main scale, when the jaws are connect, then what will be the zero error?
(A) zero error is positive
(B) zero error is negative
(C) zero correction is positive
(D) zero error does not exist

Narayan Hari

Numerade Educator

Problem 2764

When the zero mark on the vernier scale lies towards the right side of the zero mark of the main scale, when the jaws are in contact, then what will be the zero error?
(A) zero correction in positive
(B) zero correction is negative
(C) zero error in positive
(D) zero error does not exist

Narayan Hari

Numerade Educator

Problem 2765

If observed reading is OR, corrected reading is CR, zero error in $\mathrm{ZE}$ and zero correction in $\mathrm{ZC}$, then what will be the possibility?
(A) $\mathrm{CR}=\mathrm{OR}+\mathrm{ZC}$ and $\mathrm{ZE}=\mathrm{CR}-\mathrm{OR}$
(B) $\mathrm{CR}=\mathrm{OR}+\mathrm{ZE}$ and $\mathrm{ZC}=\mathrm{CR}-\mathrm{OR}$
(C) $\mathrm{CR}=\mathrm{OR}-\mathrm{ZC}$ and $\mathrm{ZE}=\mathrm{OR}-\mathrm{CR}$
(D) $\mathrm{CR}=\mathrm{OR}-\mathrm{ZE}$ and $\mathrm{ZC}=\mathrm{CR}-\mathrm{OR}$

Narayan Hari

Numerade Educator

Problem 2766

When the jaws of a standard vernier are together, the $6^{\text {th }}$ vernier scale division coincides with the $6^{\text {th }}$ main scale division, then what in the zero error?
(A) $-0.4 \mathrm{~mm}$
(B) $+0.6 \mathrm{~mm}$
(C) $-0.6 \mathrm{~mm}$
(D) $+0.4 \mathrm{~mm}$

Narayan Hari

Numerade Educator

Problem 2767

When the jaws of a standard vernier are together, the $6^{\text {th }}$ main scale division coincides with the $7^{\text {th }}$ vernier scale division, then what is the zero error?
(A) $-0.7 \mathrm{~mm}$
(B) $+0.3 \mathrm{~mm}$
(C) $-0.3 \mathrm{~mm}$
(D) $+0.7 \mathrm{~mm}$

Narayan Hari

Numerade Educator

Problem 2768

In an unusual vernier, 9 vernier scale divisions coincide with 8 main scale division, then what is the least count of the vernier?
(A) $(8 / 9) \mathrm{mm}$
(B) $(1 / 9) \mathrm{mm}$
(C) $(1 / 17) \mathrm{mm}$
(D) $(1 / 8) \mathrm{mm}$

Narayan Hari

Numerade Educator

Problem 2769

In an usual vernier, 10 vernier scale divisions, coin side with 8 main scale divisions, then what is the least count of the vernier?
(A) $0.1 \mathrm{~mm}$
(B) $0.2 \mathrm{~mm}$
(C) $0.8 \mathrm{~mm}$
(D) $(1 / 8) \mathrm{mm}$

Narayan Hari

Numerade Educator

Problem 2770

Match the two columns:$\begin{array}{ll}\text { Column-I } & \text { Column-II }\end{array}$
(a) Jaws $\mathrm{CD}$
(p) Slide and fix position of vernier scale
(b) Strip N
(q) depth of a calorimeter
(c) Screw S
(r) external diameter of a cylindrical vessel
(d) Jaws $\mathrm{AB}$
(s) Internal diameter of a cylindrical vessel
(A) $\mathrm{a} \rightarrow \mathrm{r}, \mathrm{b} \rightarrow \mathrm{q}, \mathrm{c} \rightarrow \mathrm{p}, \mathrm{d} \rightarrow \mathrm{s}$
(B) $\mathrm{a} \rightarrow \mathrm{s}, \mathrm{b} \rightarrow \mathrm{p}, \mathrm{c} \rightarrow \mathrm{q}, \mathrm{d} \rightarrow \mathrm{r}$
(C) $\mathrm{a} \rightarrow \mathrm{r}, \mathrm{b} \rightarrow \mathrm{q}, \mathrm{c} \rightarrow \mathrm{s}, \mathrm{d} \rightarrow \mathrm{p}$
(D) $\mathrm{a} \rightarrow \mathrm{p}, \mathrm{b} \rightarrow \mathrm{s}, \mathrm{c} \rightarrow \mathrm{q}, \mathrm{d} \rightarrow \mathrm{r}$

Narayan Hari

Numerade Educator

Problem 2771

N divisions on the main scale of a vernier calipers coin sides with $(\mathrm{N}+1)$ divisions on the vernier scale. If each division on the main scale is of a units, the least of count of instrument is................
(A) $\{\mathrm{a} /(\mathrm{N}+1)\}$
(B) $\{\mathrm{a} /(\mathrm{N}-1)\}$
(C) $\{(N+1) / a\}$
(D) $\{(N-1) / a\}$

Narayan Hari

Numerade Educator

Problem 2772

The edge of a cube is measured using a vernier caliper $(9$ divisions of the main scale is equal to 10 divisions of vernier scale and 1 main scale division is $1 \mathrm{~mm}$ ). The main scale division reading is 10 and 1 division of vernier scale was found to be coinciding with the main scale. The mass of the cube is $2.736 \mathrm{~g}$. What will be the density in $\left\{\mathrm{g} /\left(\mathrm{cm}^{3}\right)\right\}$ upto correct significant figures?
(A) $2.66 \times 10^{-3}\left\{\mathrm{~g} /\left(\mathrm{cm}^{3}\right)\right\}$
(B) $2.66 \times 10^{3}\left\{\mathrm{~g} /\left(\mathrm{cm}^{3}\right)\right\}$
(C) $2.66\left\{\mathrm{~g} /\left(\mathrm{cm}^{3}\right)\right\}$
(D) $2.66 \times 10^{-6}\left\{\mathrm{~g} /\left(\mathrm{cm}^{3}\right)\right\}$

Narayan Hari

Numerade Educator