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Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Practice Set 1 > One main scale division of a vernier callipers is ‘a’ cm and nth division of the vernier scale coincide with (n – 1)^th division of the main scale. The least count of the callipers in mm is :

One main scale division of a vernier callipers is ‘a’ cm and nth division of the vernier scale coincide with (n – 1)^th division of the main scale. The least count of the callipers in mm is :

One main scale division of a vernier callipers is 'a' cm and nth division of the vernier scale coincide with (n – 1)^th division of the main scale. The least count of the callipers in mm is :