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1
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following statements is correct ?
1
A neutron is formed by combination of an electron and a proton. Therefore, it is neutral
2
The mass of an electron is about 1/2000 times that of a proton
3
An isotope of cobalt is used in the treatment of goiter
4
J. J. Thomson proposed that the nucleus of an atom contains only neutrons
2
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following particles in the nucleus of an atom was discovered by J. Chadwick?
1
Electron
2
Proton
3
Positron
4
Neutron
3
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following findings is NOT observed in Rutherford's Nuclear Model of Atom?
1
There is a neutral centre in an atom called nucleus
2
Nearly all the mass of an atom resides in the nucleus
3
The electrons revolve around the nucleus in a circular path
4
The size of a nucleus is very small as compared to the size of atom
4
NDA General Ability 13 April 2025
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Match List I with List II and select the answer using the code given below the Lists:
List I (Physical Quantity) List II (SI Unit)
A. Temperature  1. Kelvin
B. Weight 2. Kilogram
C. Mass  3. Pascal
D. Pressure  4. Newton

code:

1
(a) - (1) , (b) - (2) , (c) - (4) , (d) - (3) 
2
(a) - (3) , (b) - (4) , (c) - (2) , (d) - (1) 
3
(a) - (1) , (b) - (4) , (c) - (2) , (d) - (3) 
4
(a) - (3) , (b) - (2) , (c) - (4) , (d) - (1) 
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