Physics · Chemistry

Radioactivity and Nuclear Physics

519 Questions

Radioactivity and nuclear physics encompass the study of radioactive decay processes, neutron to proton ratios, and nuclear medicine. Questions cover various detection mechanisms, including scintillation counters and neutrino telescopes. These concepts are frequently tested in advanced science and civil services examinations.

Radioactive decayNuclear medicineParticle detectionNeutrino telescopesCosmic ray detection

Radioactivity and Nuclear Physics Questions

Multiple choice physics energy production hazards and safety measures of radiations harmful effects and safety precautions for radiations nuclear physics

The people working with radioactive materials should put on special

  1. iron lined aprons and copper gloves.

  2. silver lined aprons and silver gloves.

  3. lead lined aprons and lead gloves

  4. any of the above can be used.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The people working with radioactive naturals are required to follow strictly the safety rules like they should put on special lead lined aprons and lead gloves. They should handle the radioactive naturals with long lead tongs.

Multiple choice physics towards green energy electricity from nuclear energy nuclear power nuclear energy

What is Chain Reaction?

  1. Particles released by splitting of atom strikes other uranium atoms and split them.

  2. Particles released by expanding of atom strikes other uranium atoms and split them.

  3. Particles released by contracting of atom strikes other uranium atoms and split them.

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A self sustaining reaction where the neutrons bombard an atom resulting in the fission process which leads to the release of more neutrons which then bombards more atoms and the cycles goes on.

Multiple choice physics nuclei nuclear force the nuclear force nuclear force and binding energy

At a specific instant emission of radioactive compound deflected in a magnetic field. The compound can emit 

  1. Electrons

  2. Protons
  3. $He^{2+}$

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Electrons, protons and helium ions are deflected in the magnetic field.

So, the compound can emit electrons protons and $H{e^{2 + }}$.
Hence, Option $A,B,C$ are correct.
so the final answer is D.

Multiple choice detection and recording of x-ray images option c: imaging physics

Compton effect is associated with

  1. $\alpha -$ rays
  2. $\beta -$rays

  3. Positive rays

  4. X-rays
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Compton scattering is an inelastic scattering of a photon by a quasi-free charged particle, usually an electron. It results in a decrease in energy (increase in wavelength) of the photon (which may be an X-ray or gamma ray photon), called the Compton effect. Part of the energy of the photon is transferred to the recoiling electron. Binding energy is equal to work function of metal. In most of metals, the threshold frequency is equal to that of ultravoilet light. So Compton effect is associated with X-rays.

Multiple choice chemistry air and water pollution control smoke, dust and other air pollutants, acid rain air pollutants and its effects air and air pollution

Which one of these is the heaviest known stable nuclide?

  1. $Pb^{208}$
  2. $Pb^{206}$
  3. $Pb^{210}$
  4. $Pb^{204}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Lead's four stable isotopes each have 82 protons, a magic number in the nuclear shell model of atomic nuclei. The isotope lead-208 also has 126 neutrons, another magic number, and is hence double magic, a property that grants it enhanced stability: lead-208 is the heaviest known stable nuclide.

Multiple choice chemistry what is inside atom neutrons discovery of neutrons structure of atoms

The nuclides $^{40} _{18}Ar$ and $^{41} _{19}K$ are :

  1. isotopes

  2. isobars

  3. isotones

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The two or more species of atoms or nuclei that have the same number of neutrons are called as isotones.


The nuclides $^{40} _{18}Ar$ and $^{41} _{19}K$ are isotones. Because they have the same number of neutron.

So, the correct option is $C$

Multiple choice biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

Select the correct statement regarding "A trace element is an element which".

  1. Is a radio active and can be traced by Geiger counter.

  2. Is required in very minute amounts.

  3. Draws other element out of protoplasm.

  4. Was one of the first to be discovered in protoplasm.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Trace elements are the ones which are required in. Very less amount and are present in less amounts as compared to other elements of major use.

Usually, they have very specific functions and do not contribute structurally.
Macronutrients were discovered first in the cytoplasm.
Radioactive elements are usually not present in the plant bodies.
So the correct answer is 'Is required in very minute amounts'.

Multiple choice commercial studies waste generation and management e-waste management e-wastes waste generation

Radioactive substances can cause

  1. Cancer

  2. Malaria

  3. Dysentry

  4. Common cold
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Malaria is caused by a parasite called plasmodium vivax through the agent anopheles mosquito. 

Dysentry is caused by the bacteria shigella and campylobacter which leads to severe diarrhea.
Common cold is a respiratory disorder mainly caused due to viruses. It is also called as acute coryza. It is mainly caused by coronaviruses and rhinoviruses.
Cancer is the disease of abnormal, uncontrollable cell growth leading to the formation of tumors. This disease can by genetical or can be caused by mutagenic agents (physical/chemical), radiations, over exposure to sunlight.

Multiple choice types, sources and impact of waste accumulation waste management - impact of waste accumulation our life and environment geography

 Which of the following is/are the source of man-made radiations?

  1. Nuclear power plants and cancer treatment

  2. X-rays

  3. Nuclear weapons

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nuclear power plants involve the use of radioactive elements such as uranium. Nuclear weapons are built by utilizing several radioactive elements that have the most destructive capacity. X-rays used in diagnostic purpose expose people to radioactive radiation. These are all man-made radioactive radiations.

Multiple choice physics scientists inventions and inventors in science indian scientist: biography and achievements scientist and their achievements

Marie Curie is credited to the development of which of the following element ?

  1. Thorium

  2. Cesium

  3. Radium

  4. Carbon
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marie Curie and Pierre Curie discovered the element radium.  Thorium is discovered by Jons Jacob Berzellius. Robert Bunsen and Gustav Kirchhoff  discovered Cesium and Carbon is recognized as an element by Antoine Lavoisier.