1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

A hydrogen atom is ground state absorbs $$10.2 \mathrm{~eV}$$ of energy. The orbital angular momentum of the electron is increased by

A
$$1.05 \times 10^{-34} \mathrm{~Js}$$
B
$$2.11 \times 10^{-34} \mathrm{~Js}$$
C
$$3.16 \times 10^{-34} \mathrm{~Js}$$
D
$$4.22 \times 10^{-34} \mathrm{~Js}$$
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The end product of decay of $${ }_{90} \mathrm{Th}^{232}$$ is $${ }_{82} \mathrm{~Pb}^{208}$$. The number of $$\alpha$$ and $$\beta$$ particles emitted are respectively

A
$$3,3$$
B
$$6,4$$
C
$$6,0$$
D
$$4,6$$
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
The energy equivalent to a substance of mass 1 g is
A
$18 \times 10^{13} \mathrm{~J}$
B
$9 \times 10^{13} \mathrm{~J}$
C
$18 \times 10^6 \mathrm{~J}$
D
$9 \times 10^6 \mathrm{~J}$
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
The half-life of tritium is 12.5 years. What mass of tritium of initial mass 64 mg will remain undecayed after 50 years?
A
32 mg
B
8 mg
C
16 mg
D
4 mg
KCET Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12