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Published on: 04/09/2019
Nuclear Physics
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.
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
2.
_____________ aprons are used to protect us from gamma radiations
Lead oxide
Iron
Lead
Aluminium
3.
Gamma radiations are dangerous because
it affects eyes & bones
it affects tissues
it produces genetic disorder
it produces enormous amount of heat
4.
If the radiation exposure is 100 R, it may cause ______________.
5.
The radio isotope of ________ helps to increase the productivity of crops.
6.
Deflected by electric field : \(\alpha\) ray,
Null Deflection : __________
7.
Spontaneous process : Natural Radioactivity,
Induced process : ________
8.
Assertion: Control rods are known as 'neutron seeking rods'
Reason: Control rods are used to perform sustained nuclear fission reaction.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.
9.
Assertion: A neutron impinging on U235, splits it to produce Barium and Krypton.
Reason: U - 235 is a fissile material.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
(b) If both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.
10.
Which material protects us from radiation?
11.
A radon specimen emits radiation of 3.7 × 103 GBq per second. Convert this disintegration in terms of curie. (one curie = 3.7 × 1010 disintegration per second).
12.
Give any two uses of radio isotopes in the field of agriculture?
13.
Mr. Ramu is working as an X - ray technician in a hospital. But, he does not wear the lead aprons. What suggestion will you give to Mr. Ramu?
1.
(b)
8, 4
2.
(c)
Lead
3.
(c)
it produces genetic disorder
4.
( )
Leukemia
5.
( )
P- 32
6.
Gamma rays
7.
Artificial radioactivity
8.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
9.
(a) If both the assertion and the reason are true and the reason is the correct explanation of the assertion.
10.
Lead.
11.
1 Bq = one disintegration per second
one curie = 3.7 × 1010 Bq
1 Bq = \(\frac { 1 }{ 3.7\times { 10 }^{ 10 } } \) curie
∴ 3.7 x 103 G Bq = 3.7 x 103 x 109 x \(\frac { 1 }{ 3.7\times { 10 }^{ 10 } } \)
= 100 curie
12.
(i) To increase the productivity of crops
(ii) Remains fresh beyond their normal life time
13.
(i) Radiation emitted by the X-ray machine can easily passes through our body and can cause genetic diseases.
(ii) These have been passed by genetic diseases from generation to generation.
(iii) When the emitted radiation is so high, it leads to death. So Mr. Ramu must wear the lead aprons.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
