10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 4 - The Attic Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 3 - The Story of Mulan Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 3 - I am Every Woman Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 3 - Empowered Women Navigating The World Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 2 - Zigzag Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 2 - The Grumble Family 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 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.
The mass of the product nucleus is always _______ the sum of masses of the lighter nuclei.
less than
greater than
equal to
the product of the product nucleus.
2.
BARC is situated at ________.
Trombay
Kalpakkam
Trivandrum
Thumba
3.
Which of the following is not a moderator?
liquid sodium
ordinary water
graphite
heavy water
4.
A good ________ shows down neutrons by elastic collisions and it does not remove them by absorption.
fuel
moderator
coolant
control rod
5.
In order to supply neutrons for research purpose, we use ________ reactors.
research
power
production
source
6.
U238 is fissionable _________ neutrons.
only by fast
only by slow
both fast and slow
by thermal
7.
Chain reaction is possible, only if the size of system is __________ the critical size.
less than
greater than
equal to
independent of
8.
U238 kept in nuclear reactors, generally decay into _________.
Np239
PU239
both (a) and (b)
U235
9.
In molecular biology, radioisotope are used in ________ surgical instruments.
engraving
sterilizing
sharpening
preserving
10.
Radio __________ is used in the treatment of skin diseases
iron
phosphorous
sodium
iodine
11.
Irene Curie and F. Joliot discovered __________in the year 1934.
natural radioactivity
fluorescence
artificial radioactivity
hydrogen bomb
12.
Gamma - rays are ________ in nature.
gravitational
electromagnetic
weak
nuclear
13.
૪ rays are ________ in charge.
positive
negative
neutral
none
14.
Nucleons are made of ________.
atoms
electrons and protons
electrons and neutrons
protons and neutrons
15.
A chain reaction is continuous due to
large mass defect
large energy
production of more neutrons in fission
None of these
16.
Fusion reaction is initiated with the help of
(i) low temp
(ii) high temp
(iii) low press
(iv) high press
(i) is correct
(ii) & (iv) are correct
(i) & (iv) are correct
(ii) & (iv) are correct
17.
The control rod in a nuclear reactor is made of
uranium
cadmium
graphite
plutonium
18.
Kamini reactor is located at __________
Kalpakkam
Koodankulam
Mumbai
Rajasthan
19.
_____________ aprons are used to protect us from gamma radiations
Lead oxide
Iron
Lead
Aluminium
20.
Unit of radioactivity is _____________
roentgen
curie
becquerel
all the above
1.
(a)
less than
2.
(a)
Trombay
3.
(a)
liquid sodium
4.
(b)
moderator
5.
(a)
research
6.
(a)
only by fast
7.
(b)
greater than
8.
(c)
both (a) and (b)
9.
(b)
sterilizing
10.
(b)
phosphorous
11.
(c)
artificial radioactivity
12.
(b)
electromagnetic
13.
(c)
neutral
14.
(d)
protons and neutrons
15.
(c)
production of more neutrons in fission
16.
(d)
(ii) & (iv) are correct
17.
(b)
cadmium
18.
(a)
Kalpakkam
19.
(c)
Lead
20.
(d)
all the above
10th Standard Syllabus & Materials
10th Standard
TN 10th English Prose - 2 - The Night the Ghost Got in Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Supplementary - 1 - The Tempest Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Poem - 1 - Life Important Questions And Answers Study Material - QB365 Set A
NEW10th Standard
TN 10th English Prose - 1 - His First Flight Important Questions And Answers Study Material - QB365 Set A
Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
