A vernier calipers has 25 divisions on the vernier scale, An object is held between the external jaw of this instrument. If the zeroth division of the vernier scale is to the left 32nd division of the main scale and the 20th division of the vernier scale coincides with a main scale division, determine the measurement of teh object.` (Take 1 M.S.D. = 0.5 mm )`
