10th Standard Syllabus & Materials
10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Population, Transport, Communication and Trade Important Questions And Answers Study Material - QB365 Set C
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Population, Transport, Communication and Trade Important Questions And Answers Study Material - QB365 Set B
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Population, Transport, Communication and Trade Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Resources and Industries Important Questions And Answers Study Material - QB365 Set C
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Resources and Industries Important Questions And Answers Study Material - QB365 Set B
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - India - Resources and Industries Important Questions And Answers Study Material - QB365 Set A
Published on: 05/12/2020
10th Standard Science Nuclear Physics English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Commonly used moderators are _________ and________.
D2O, H2O
D2, H2
O2, H2
O2,N2
2.
Minimum size of a system in which at least 1 neutron is available for further fission is called________.
cut - off size
critical size
range of reactor
capability criteria
3.
Radioactive materials are kept -in thick -walled ________ containers.
aluminium
iron
brick
lead
4.
Roentgen (R) is the unit to measure _________.
X - ray strength
number of holes produced by X - rays
radiation exposure
number of cancer cells
5.
Radio - carbon dating can be done with _________.
only living things
only non - living things
both (a) and (b)
none
6.
Radio ________ is used in the treatment of cancer.
sodium
cobalt
iron
phosphorous
7.
β-rays are nothing but _________.
protons
neutrons
electrons
helium
8.
Elements having atomic number greater than ________ are radioactive.
48
68
88
83
9.
Atomic nucleus was discovered by _______
Rutherford
Newton
Einstein
Nobel
10.
Fusion reaction takes place at high temp.
atoms are ionised
molecules break up
nuclei break up
to overcome repulsion between nuclei
11.
The explosion of the atomic bomb takes place due to
Nuclear fission
Nuclear fusion
Scattering
Heating
12.
Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled
iii. The chain reaction in a nuclear reactor is not controlled
iv. No chain reaction takes place in an atom bomb
(i) only correct
(i) & (ii) are correct
(iv) only correct
(iii) & (iv) are correct
13.
In the nuclear reaction 6X12 \(\overset { \alpha \ decay }{ \longrightarrow } \) zYA, the value of A & Z.
8, 6
8, 4
4, 8
cannot be determined with the given data
14.
_____________ aprons are used to protect us from gamma radiations
Lead oxide
Iron
Lead
Aluminium
15.
Unit of radioactivity is _____________
roentgen
curie
becquerel
all the above
1.
(a)
D2O, H2O
2.
(b)
critical size
3.
(d)
lead
4.
(c)
radiation exposure
5.
(b)
only non - living things
6.
(b)
cobalt
7.
(c)
electrons
8.
(d)
83
9.
(a)
Rutherford
10.
(d)
to overcome repulsion between nuclei
11.
(a)
Nuclear fission
12.
(b)
(i) & (ii) are correct
13.
(b)
8, 4
14.
(c)
Lead
15.
(d)
all the above
10th Standard Syllabus & Materials
10th Standard
Tamilnadu 10th Standard Social Science GEO - Climate and Natural Vegetation of India Important Questions And Answers Study Material - QB365 Set C
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - Climate and Natural Vegetation of India Important Questions And Answers Study Material - QB365 Set B
NEW10th Standard
Tamilnadu 10th Standard Social Science GEO - Climate and Natural Vegetation of India Important Questions And Answers Study Material - QB365 Set A
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Tamilnadu 10th Standard Social Science GEO - India - Location, Relief and Drainage Important Questions And Answers Study Material - QB365 Set B
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
