Physics And Measurement Question 282
Question: In a vernier callipers N division of vernier coincide with $ (N-1) $ divisions of main scale in which length of a division is 1 mm. The least count of the instrument in cm is
Options:
A) N
B) $ N-1 $
C) $ \frac{1}{10N} $
D) $ (1/N)-1 $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ L.C.=\frac{valueof1divisionofmainscale}{numberofdivisiononmainscale} $
$ =\frac{1}{N}mm=\frac{1}{10N}cm $
