1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The energy (in eV ) required to excite an electron from $n=2$ to $n=4$ state in hydrogen atom is
A
-0.85
B
+425
C
-3.4
D
+2.55
2
KCET 2017
MCQ (Single Correct Answer)
+1
-0
In a nuclear reactor, the function of the moderator is to decreases
A
number of neutrons
B
speed of neutrons
C
escape of neutrons
D
temperature of the reactor
3
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The scientist who is credited with the discovery of 'nucleus' in an atom is
A
Rutherford
B
Niels Bohr
C
Balmer
D
J.J Thomson
KCET Subjects
EXAM MAP