NDA Government Jobs Exams

For a simple pendulum, the graph between T2 and L (where T is the time period & L is the length) is
(A) straight line passing through origin (B) parabolic
(C) circle (D) none of the above

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NDA Other Question

A bucket full of water is kept in a room and it cools from 75ºC to 70ºC in time T1 minutes, from 70ºC to
65ºC in time T2 minutes, and from 65ºC to 60ºC in time T3 minutes, then
(A) T1 = T2 = T3 (B) T1 < T2 < T3 (C) T1 > T2 > T3 (D) T1 < T3 < T2 When an electrical safety fuse is rated (marked) as 16 A, it means it
(A) Will not work if current is less than 16 A (B) has a resistance of 16 Ω
(C) will work if the temperature is more than 16º C (D) will be blown (break) if current exceeds 16 A