Consider the following statements: (i) A comparator with higher magnification has small range. (ii) Brooke’s level comparator is a mechanical comparator. (iii) Sigma comparator is an optical comparator. (iv) Johansson Mikrokator is a pneumatic comparator.
1
(i) is true
2
(i) and (ii) are true
3
(ii) and (iii) are true
4
(iii) and (iv) are true