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After Online tests for all subjects now it’s time to prepare the next level for Punjab board students to prepare their short question section here. We have a complete collection of all classes subject wise and chapter wise thousands questions with the right answer for easy understanding.
Here we are providing complete chapter wise Physics questions and Answers for the 10th class students. All the visitors can prepare for their 10th class examination by attempting below given question answers.
In this List we have included all Punjab boards and both Arts and Science students. These Boards students can prepare their exam easily with these short question answer section
Lahore Board 10th classes short questions Answer
Rawalpindi Board 10th classes short questions Answer
Gujranwala Board 10th classes short questions Answer
Multan Board 10th classes short questions Answer
Sargodha Board 10th classes short questions Answer
Faisalabad Board 10th classes short questions Answer
Sahiwal Board 10th classes short questions Answer
DG Khan Board 10th classes short questions Answer
Bahwalpur Board 10th classes short questions Answer
All above mention Punjab Boards students prepare their annual and classes test from these online test and Short question answer series. In coming days we have many other plans to provide all kinds of other preparation on our Gotest website.
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10th Class Physics Chapter 9 Atomic and Nuclear Physics Short Question Answer
It is equal to the number of nucleons in the nucleus.
Radiations are also source of blindness.
Deuterium contains one proton, one neutron and one electrons.
Radiation cause genetic mutation in both human and plants. Some children are born with serious deformities due to genetic mutation.
Isotopes are atoms of an element which has same number of protons but different number of neutrons in their nuclei.
In natural radioactivity a naturally unstable element spontaneously emit radiation to be stable.
Radiation also cause the cancer of blood cells.
1. Atomic number is the number of neutrons present in nucleus.
2. It is represented by Z.
Daughter nucleus will be an isotope of helium.
1. The atomic number is equal to the number of protons in the nucleus.
2. It is represented by Z.
Protium contains one proton in the nucleus and one electron that resolved around the nucleus.
a. Alpha particles
b. Beta particles
c. Gamma particles.
The nucleus which emit radiations, all the time, and hence continuously change from one type of element to another are called unstable nucleus.
Half life can be calculated by following formula.
Remaining atoms = original atoms x 1/2t
The spontaneous emission of radiation by unstable uncle is called natural radioactivity.
The elements which emit radiations are called radioactive elements.
iii. Alpha particles
iv. Some larger nuclei
i. The sources should only be handled with tongs and forceps.
ii. All radioactive sources should be stored in thick lead containers.
iii. Never point a radioactive source towards a person.
Tritium contains one proton, two neutrons and one electron.
Alpha particle has high mass due to this, its penetrating power is very short. It has large interacting and ionizing power. It is also the reason of its less penetrating power.
The gamma rays can penetrate to a considerable thickness of concrete. It is due to their large speed and neutral nature.
Beta radiation strongly interact with matter due to its charge and has a short range of penetrating as compared to gamma radiation.
The nucleus which don’t emit radiations naturally are called stable nucleus.
The earth and all living thing on it receive radiation from outer space. This radiation is called comic radiations.
Ans:Radioisotope: The stable and non-radioactive elements can also be changed into radioactive element by bombarding them with protons, neutrons or alpha particles, such artificially produced radioactive element are called radioactive isotopes,or radio isotope.