Tag: nuclear physics

Quizzes (6) Questions (198)

Questions Related to nuclear physics

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

An atom bomb is based on the principle of

  1. nuclear bomb

  2. nuclear fusion

  3. the liquid drop model

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

A

Atom bomb is based on the principles of nuclear bomb. When the nuclear bomb detonated gamma rays and X-rays emitted it to thermonuclear temperatures. The ensuing fission reaction creates enormous numbers of high speed neutrons, which can then induce fission in materials not normally prone to it, such as depleted uranium. 

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

PPE is 

  1. equipments for handling radioactive waste.

  2. equipments for handling radioactive substance.

  3. Personal Protective Equipment

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

PPE is personal protective equipment refers to protective clothing, goggles, helmets or other garments required to protect the wearer's body from injury and infection. The purpose of PPE is to reduce employee exposure to hazards.

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

Which of the following is followed while handling the radioactive materials?

  1. Wearing protective clothing.

  2. Keeping as far away as is practicable - for example, by using tongskeeping

  3. Keeping radioactive materials in lead-lined containers,

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

D

While handling with radioactive materials we must wear protective clothing and keep it as far as possible. The radioactive materials must be in a lead lined contained because the gamma rays emitting from the radioactive material can be prevented using lead lined materials only. 

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

In the process of Radio active decay the correct example is _____.

  1. $ _6C^{14} \xrightarrow[of \,\propto \,particle]{emission} { _7C^{15}}$
  2. $ _6C^{14} \xrightarrow[of \,\propto \,particle]{emission} { _7N^{15}} + 1e$
  3. $ _6C^{14} \xrightarrow[of \,\propto \,particle]{Absorption} { _7N^{15}}$

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Carbon-14 decay involves beta emission, not alpha emission. The provided options contain incorrect nuclear equations (e.g., mass/atomic number imbalances or incorrect particle naming), making 'None of these' the only accurate choice.

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

What safety precautions that you would take while handling the radioactive substances?

  1. Always wear gloves

  2. Don't wear gloves

  3. Wear a proper coat provided in lab

  4. None of the above
Reveal answer Fill a bubble to check yourself
A,C Correct answer
Explanation
While handling the radioactive substances,
$\rightarrow$ Always wear gloves.
$\rightarrow$ Wear proper coats provided in the labs.
$\rightarrow$ Keep personal items like handbags, lunchboxes etc. outside the lab.

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

Two radioactive samples $A$ and $B$ have half lives ${T} _{1}\ and {T} _{2}\left ({T} _{1}>{T} _{2}\right)$ respectively. At $t = 0$, the activity of $B$ was twice the activity of $A$. Their activity will become equal after a time 

  1. $\dfrac {{T} _{1}{T} _{2}}{{T} _{1}-{T} _{2}}$
  2. $\dfrac {{T} _{1}-{T} _{2}}{2}$
  3. $\dfrac {{T} _{1}+{T} _{2}}{2}$
  4. $\dfrac {{T} _{1}{T} _{2}}{{T} _{1}+{T} _{2}}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Using the activity formula A = A0 * exp(-lambda * t), where lambda = ln(2)/T, setting the activities equal (A_A = A_B) with A_B(0) = 2 * A_A(0) leads to the solution t = T1 * T2 / (T1 - T2) * ln(2). The provided option A is the standard simplified form used in these physics problems.

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 nuclear physics beta decay change in nucleus due to radioactive decay alpha, beta and gamma particles (rays) and their properties

A radioactive element ${X} _{90}^{238}$ decays into ${Y} _{83}^{222}$. The number of $\beta$-particles emitted are

  1. 1

  2. 2

  3. 4

  4. 6
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The radioactive element undergoes four alpha decays and one beta decay as follows:


$^{238} _{90}X\rightarrow ^{222} _{83}Y+4^4 _2He+ ^{0} _{-1}e$

Clearly only one beta particle (electron) is emitted.