Question

The percentage error in measurement of a physical
quantity m, given by m = pie tan thita is minimum
when
(1) thita = 45°
(2) thita= 90°
(3) thita= 60°
(4) thita= 30°
​

Answer 1

The percentage error in measurement of a physical

quantity m, given by m = pie tan thita is minimum

when

(1) thita = 45°

(2) thita= 90°

(3) thita= 60°✔

(4) thita= 30°

Answer 2

The percentage error in measurement of a physical

quantity m, given by m = pie tan thita is minimum

when

Answer ↪(3) thita= 60° ✔✔✔