1
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Point of Origin of Earthquake Wave is known as
A
Epicenter
B
Focus
C
Photosphere
D
Seismic Zone
2
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following conclusions could not be derived from Rutherford's α-particle scattering experiment? 
A
Most of the space in the atom is empty
B
The radius of the atom is about 105 times the radius of the nucleus
C
Electrons move in a circular path of fixed energy called orbits
D
Nearby all the mass of the atom resides in the nucleus
3
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Twinkling of stars is due to
A
Particular frequencies of the starlight
B
reflection of starlight from the oceanic surface
C
atmospheric refraction of starlight
D
magnetic field of Earth
4
NDA General Ability 18 April 2021
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following cannot be the unit of frequency of a sound wave?
A
dB
B
s-1
C
Hz
D
min-1
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