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Recent questions tagged radioactivity
+2
votes
1
answer
Obtain the relation N = N0e-λt for a sample of radio active material having decay constant λ ,
asked
Apr 4, 2019
in
Class 12
by
kratos
class-12-hindi
nuclei hindi
cbse
mass-energy relation
radioactivity
class-12
nuclei
+3
votes
1
answer
Particles like kaons and muons etc, were found out by
asked
Apr 3, 2019
in
Chemistry
by
kratos
class-12
class-11
physical chemistry
radioactivity
+3
votes
1
answer
State three ways of obtaining an electron-beam.
asked
Apr 1, 2019
in
Class 10
by
kratos
radioactivity
class-10
icse
thermionic emission
+3
votes
1
answer
A nucleus of an element has the symbol 84P^202, and emits an α-particle and then a β-particle.
asked
Mar 28, 2019
in
Class 10
by
kratos
radioactivity
class-10
icse
thermionic emission
+3
votes
1
answer
Complete the following fission reaction 92U^235 0n^1 → aSb^133 + 41Co^b + (4, 0)n1 + energy Write down the values of a and b.
asked
Mar 26, 2019
in
Class 10
by
kratos
radioactivity
class-10
icse
thermionic emission
+3
votes
1
answer
A nucleus (A ,Z)X emits an alpha particle followed.by ϒemission; thereafter it emits two β particles to form X3.
asked
Mar 25, 2019
in
Physics
by
kratos
irodov
modern physics
jee
radioactivity
class-10
icse
jee mains
nuclear physics
+2
votes
1
answer
An electron of energy 1.0 keV approaches a bare nucleus (Z = 50) with an impact parameter corresponding to an orbital momentum.
asked
Mar 22, 2019
in
Physics
by
kratos
irodov
jee
radioactivity
scattering of particles
jee mains
elementary particles
nuclear physics
+2
votes
1
answer
Name the radioactive radiations which have the least penetrating power.
asked
Mar 20, 2019
in
Physics
by
kratos
modern physics
thermionic emission
radioactivity
class-10
icse
class-12
nuclear physics
+2
votes
1
answer
A radioactive nucleus undergoes a series of decays according to the sequence
asked
Mar 19, 2019
in
Class 12
by
kratos
thermionic emission
cbse
radioactivity
class-10
icse
class-12
+1
vote
1
answer
The strong nuclear force acts over the distance
asked
Mar 18, 2019
in
Class 10
by
kratos
icse
class-10
thermionic emission
radioactivity
+2
votes
1
answer
Give two important precautions that should be taken while handling radioactive materials.
asked
Mar 17, 2019
in
Physics
by
kratos
thermionic emission
radioactivity
class-10
icse
nuclear physics
+1
vote
1
answer
Investigate using liquid drop model, the β stability of the isobars (127, 53)I and (127, 54)Xe given that
asked
Mar 17, 2019
in
Physics
by
kratos
irodov
jee
radioactivity
class-10
icse
jee mains
class-12
nuclear physics
+2
votes
1
answer
A certain nucleus has a mass number 20 and atomic number 9. Find the number of neutrons and protons present in it.
asked
Mar 13, 2019
in
Class 10
by
kratos
radioactivity
class-10
icse
thermionic emission
+1
vote
1
answer
There is a ***** spot on a body. If the body is heated & carried in dark room, then it glows more. This can be explained by:
asked
Mar 12, 2019
in
Physics
by
kratos
getting to know plants
thermionic emission
p-block elements
radioactivity
class-6
class-10
icse
class-12
nuclear physics
+1
vote
1
answer
A radioactive nucleus ‘A’ undergoes a series of decays according to the following scheme:
asked
Mar 10, 2019
in
Class 12
by
kratos
thermionic emission
cbse
radioactivity
class-10
icse
class-12
+3
votes
1
answer
A fluorescent tube is preferred to an electric bulb because
asked
Mar 9, 2019
in
Class 12
by
kratos
electricity and magnetism
thermionic emission
csat
radioactivity
electric current and its effects
class-7
icse
general scince
class-10
alternating current
class-12
+1
vote
1
answer
The masses of neutron and Proton are 1.0087 amu and 1.0073 amu respectively.
asked
Mar 9, 2019
in
Chemistry
by
kratos
neet
class-11
jee
physical chemistry
radioactivity
jee mains
class-12
atoms
nuclei
+2
votes
1
answer
The numbers of α and β particles emitted in the transformation
asked
Mar 6, 2019
in
Chemistry
by
kratos
neet
class-11
jee
physical chemistry
radioactivity
jee mains
bitsat
class-12
atoms
nuclei
+1
vote
1
answer
If two α-emitting nuclei, with the same mass number, one with Z = 84 and the other with Z = 82 had the same decay constant,
asked
Mar 6, 2019
in
Physics
by
kratos
irodov
jee
radioactivity
class-10
jee mains
nuclear physics
+1
vote
1
answer
Calculate the density of the nucleus of 47Ag^107 assuming r nucleus is 1.4 A^1/3 x 10^-13 cm.
asked
Mar 6, 2019
in
Chemistry
by
kratos
class-12
class-11
physical chemistry
radioactivity
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