The ratchet head of a distance measuring instrument as shown in the given figure, turns by nine revolutions. Find the distance between the anvil and the spindle. Also, how many revolutions does the thimble revolve? (Assume that, distance moved by the spindle for every two revolutions is 0.1 mm.)
| Distance between anvil and spindle |
Revolution of thimble |
|
|---|---|---|
| A | 4.50 mm | 4.5 |
| B | 4.50 mm | 9 |
| C | 9.00 mm | 4.5 |
| D | 4.5 mm | 9 |
There is no option for the correct answer which is 9/2 * 0.1mm = 0.45 mm