1
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements is not true for a flute, a musical instrument?
A
Momentum of waves on the blowing jet determines the loudness of the produced note.
B
Arrival time of the waves on the blowing jet determines the pitch of the produced note.
C
Sound comes from a vibrating column of air inside the flute.
D
Sound comes from a vibrating column of air inside as well as outside the flute.
2
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
A positive charge is moving towards south in a space where magnetic field is pointing in the north direction. The moving charge will experience :
A
a deflecting force towards north direction.
B
a deflecting force towards east direction.
C
a deflecting force towards west direction.
D
no deflecting force.
3
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following astronomers proved that the Earth and other planets revolve around the Sun?
A
Copernicus
B
Kepler
C
Galileo
D
Newton
4
NDA General Ability 16 April 2023
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Sand falls vertically on a conveyor belt at a work rate of 0⋅1 kg/s. In order to keep the belt moving at a uniform speed of 2 m/s, the force required to be applied on the belt is :
A
0 N
B
0⋅2 N
C
1⋅0 N
D
2⋅0 N
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