Veto q&a 7 Month22 (1)

Q & A
@physics
2018
July
nuCLEAr PHYSICS
Branch of science which deals with the phenomenon of
nucleus of an atom.
Q
Q
Q
Q
SMILInG BuDHA
radioactivity
Who is considered the father of Radioactivity
A. Henry Becquerel
The term Radio Activity was coined by
A. Madam Curie
The device used to measure Radioactivity
A. Geiger Muller Counters
Who discovered Artificial Radioactivity
A. Irine Curie and frederic Juliot Curie
unIT Of rADIOACTIVITY
Least peneterating
Power
Represented by
Helium Nucleus
High
Represented
by Electron
Deepika
Highest
Only radioactive
Particle present
in Electomagnetic
Spectrum
Speed = 2x10 7 m/s 2x10 8 m/s 3x10 8 m/s
Half Life (t 1 / 2
)
Half life of a radioactive element is defined as the
time required for the decay of one half of it’s original
amount.
Radium, t 1 / 2
= 1662 yrs
Carbon-14 = 5760 yrs
Iodine-131 = 8 days
Q
Q
1 Becquerel = 1 disintegrator/sec (1 decay/sec)
1 Curie = 3.7 x 10 10 disintegrator/sec (Bq)
1 rutherford = 10 6 disintegrator/sec (1 decay/sec)
Which are the fundmental radioactive particles
A. Alpha (α), Beta (β), Gamma (χ)
Who discovered Gamma Rays
A. Paul Williard
Q
Which atom is known as the daughter element of
Tritium
A. Helium-3 (Tritium is a beta Emitter)
SOME rADIO ISOTOPES AnD THEIr uSES
Cobalt-60
Carbon-14
Sodium-24
Cancer Treatment
Determination of age of fossils
Angiogram Test
Q
Q
The radioactive particle which travels with the speed
of light
A. Gamma
Negatively charged radioactive particle
Uranium-231
Tritium ( 1
H 3 )
Gold-198
Rock Dating
Wine Dating
Leukemia Test
A. Beta
Phosphorus-32
Skin Cancer Diagnosis
ALPHA, BETA, GAMMA - COMPArISOnS
Iodine-131
Hyper Thyroidism
Alpha Beta Gamma
+vely charged -vely charged Chargeless
Identified by
Rutherford
Highest ionisation
Energy
Identified by
Rutherford
Low
Identified by
Paul Willaird
Lowest
Q
nuclear reactions
The process of splitting of a heavier nucleus into lighter
nucleus by bombarding with neutron is called
A. nuclear fission
Q&A Bonus
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