NDA Government Jobs Exams

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

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NDA Other Question

SONAR is mostly used by
(A) Doctors (B) Engineers (C) Astronauts (D) Navigators
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