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1
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
The free fall acceleration g increases as one proceeds at sea level, from the equator towards either pole. The reason is
A
earth is a sphere with same density everywhere
B
earth is a sphere with different density at the polar regions than in the equatorial regions
C
earth is approximately an ellipsoid having its equatorial radius greater than its polar radius by 21 km
D
earth is approximately an ellipsoid having its equatorial radius smaller than its polar radius by 21 km.
2
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statement is correct?
A
The measurement of mass taken by a spring weighing balance is correct at the place where the spring balance is calibrated for.
B
The measurement of mass taken by a spring weighing balance is correct at all places.
C
The measurement of mass taken by a spring weighing balance is correct at the places where the acceleration due to gravity is same with the place where the spring balance is calibrated for.
D
A spring balance cannot be used to measure mass at any place.
3
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is not a contact force?
A
Push force
B
Gravitational force
C
Frictional force
D
Strain force
4
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
When a force of 1 N acts on a mass of 1 kg, which is able to move freely, the object moves in the direction of force with a/an
A
speed of 1 km/s
B
acceleration of 1 m/s2
C
speed of 1 m/s
D
acceleration of 1 km/s2
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