Q.

The main scale of vernier calipers reads in millimeter and its one division is equal to one millimeter. Its vernier is divided into 10 divisions, which coincide with 7 divisions of main scale. Further more when a cylinder is tightly, placed along its length between two jaws, it is observed that the zero vernier scale lies just right to 37th division of main scale and seventh division of vernier scale coincide with the main scale. Then the measured value is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

3.91 cm

b

3.71 cm

c

3.77 cm

d

3.67 cm

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

10 V = 7 S

V = 0.7 S . Therefore least count = 1(1 - 0.7) mm = 0.3 mm

 

So, measured value

=37 +7×0.3 mm =  3.91 cm

Question Image
Watch 3-min video & get full concept clarity

hear from our champions

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon