A Vernier callipers has 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale, which match with 16 main scale divisions. For this vernier callipers, the least count is A Vernier callipers has 1 mm marks on the main scale. It has 20 equal divisions on the vernier scale the least count is which match with 16 main scale divisions. For this vernier callipers September 16, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related