jee-main 2025 Q19

jee-main · India · session2_07apr_shift2 Not Maths

Q19. Least count of a vernier caliper is $\frac { 1 } { 20 \mathrm {~N} } \mathrm {~cm}$. The value of one division on the main scale is 1 mm . Then the number of divisions of main scale that coincide with N divisions of vernier scale is :
(1) $( 2 \mathrm {~N} - 1 )$
(2) $\left( \frac { 2 \mathrm {~N} - 1 } { 2 \mathrm {~N} } \right)$
(3) $\left( \frac { 2 \mathrm {~N} - 1 } { 2 } \right)$
(4) $\left( \frac { 2 \mathrm {~N} - 1 } { 20 \mathrm {~N} } \right)$

Q19. Least count of a vernier caliper is $\frac { 1 } { 20 \mathrm {~N} } \mathrm {~cm}$. The value of one division on the main scale is 1 mm . Then the number of divisions of main scale that coincide with N divisions of vernier scale is :\\
(1) $( 2 \mathrm {~N} - 1 )$\\
(2) $\left( \frac { 2 \mathrm {~N} - 1 } { 2 \mathrm {~N} } \right)$\\
(3) $\left( \frac { 2 \mathrm {~N} - 1 } { 2 } \right)$\\
(4) $\left( \frac { 2 \mathrm {~N} - 1 } { 20 \mathrm {~N} } \right)$

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