1
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Whether an object will float or sink in a liquid, depends on
A
mass of the object only
B
mass of the object and density of liquid only
C
difference in the densities of the object and liquid
D
mass and shape of the object only
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following device is non-ohmic?
A
Conducting copper coil
B
Electric heating coil
C
Semi-conductor diode
D
Rheostat
3
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is the natural phenomenon based on a simple periscope works?
A
Reflection of light
B
Refraction of light
C
Dispersion of light
D
Total internal reflection of light
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following frequency range is sensitive to human ears?
A
0-200 Hz
B
20-20000 Hz
C
200-20000 Hz
D
2000-20000 Hz
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