1 |
Those elements whose charge number z is greater then __________ are unstable: |
80
79
82
83
|
2 |
The binding energy for_________ is maximum. |
Copper
Glass
Iron
Aluminum
|
3 |
The most abundant isotope of neon is: |
Neon 21
Neon 20
Neon 22
None of above
|
4 |
Both xenon and caesium each have: |
41 isotopes
36 isotopes
43 isotopes
33 isotopes
|
5 |
The total charge of any nucleus is: |
Ze
Z
Both a and b
None of above
|
6 |
The mass of proton in amu is: |
1.07276
1.7276
1.007276
1.0007276
|
7 |
amu = |
1.06 x 10<sup>-27</sup> kg
1.6606 x 10<sup>-27</sup> kg
1.520 x 10<sup>-21</sup> kg
1.6606 x 10<sup>-31</sup> kg
|
8 |
The mass of protons is: |
1.675 x 10<sup>-27</sup> kg
1.693 x 10<sup>-27</sup> kg
1.673 x 10<sup>-31</sup> kg
1.673 x 10<sup>-27</sup> kg
|
9 |
The scientist who suggested the presence of neutron was: |
Bohr
Rutherford
Chadwick
J.J Thomson
|
10 |
1 rem = |
0.001 SV
0.01 SV
0.1 SV
1.01 SV
|
11 |
1 rad = |
0.001Gy
0.01Gy
0.1Gy
1.01Gy
|
12 |
Boher proposed his atomic model in: |
1910
1911
1912
1913
|
13 |
Charge on an atom is: |
Positive
Negative
Neutral
None of these
|
14 |
Electron volt is unit of: |
Chemical energy
Potential energy
Nuclear energy
heat energy
|
15 |
Charge on positron is: |
Negative
Positive
Netural
None of these
|
16 |
A° is the unit of: |
Energy
Length
Nuclear energy
Work
|
17 |
Energy produced due to fission of uranium atom is: |
500MeV
200MeV
700MeV
750MEV
|