1
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which of the following statement(s) about specific heat of a body is/are correct?

1. It depends upon mass and shape of the body.

2. It is independent of mass and shape of the body.

3. It depends only upon the temperature of the body.
A
Only 1
B
2 and 3
C
1 and 3
D
Only 2
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob?
A
Applied force
B
Frictional force
C
Restoring force
D
Virtual force
3
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statement about the refractive index of a material medium with respect to air is correct?
A
It can be either positive or negative.
B
It can have zero value.
C
It is unity for all materials.
D
It is always greater than one.
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statement about magnetic field lines is not correct?
A
They can emanate from a point.
B
They do not cross each other.
C
Field lines between two poles cannot be precisely straight lines at the ends.
D
There are no field lines within a bar magnet.
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