NDA Government Jobs Exams General Ability General Knowledge

The polarity of an unmarked horse shoe magnet can be determined by using
option
(A) a charged glass rod
(B) a magnetic compass
(C) an electroscope
(D) another unmarked bar magnet

Read Solution (Total 1)

(B) a magnetic compass
8 years agoHelpfull: Yes(0) No(0)

NDA Other Question

A body weight 5 kg on equator. At the poles it is likely to weigh
option
(A) 5 kg
(B) less than 5 kg but not zero
(C) 0 kg
(D) more than 5 kg A staircase has 5 steps each 10 cm high and 10 cm wide. What is the minimum horizontal velocity to be
given to the ball so that it hits directly the lowest plane from the top of the staircase ? (g = 10 ms2)