MDCAT Physics Chapter 16 MCQ Test With Answer for (Nuclear Physics)

MCQ's Test For MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test

Try The MCQ's Test For MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test

  • Total Questions20

  • Time Allowed20

Start Test Download PDF

MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test

00:00
Question # 1

In an 𝑎 −decay:

Question # 2

The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is:

Question # 3

Because of large mass when 𝑎 −paricle enters the atom or molecule it:

Question # 4

A thorium nucleus is formed when a uranium nucleus emits an 𝑎 −particles. Atomic number of thorium is :

Question # 5

The more readily fissionable isotope of uranium has an atomic mass of:

Question # 6

A radioactive nucleus can emit:

Question # 7

Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:

Question # 8

During a negative β-decayv

Question # 9

The phenomenon of radioactivity is associated with:

Question # 10

The mother and daughter elements with the emission of 𝖰 − 𝒓𝒂𝒚𝒔, are called:

Question # 11

The activity of a radioactive sample is 1.6 curie and half-life is 2.5 days. Its activity after 10 days will be:

Question # 12

The fusion of hydrogen into helium is more likely to take place:

Question # 13

For atomic nucleus, the binding energy per nucleon with increase in mass number:

Question # 14

A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:

Question # 15

During a negative β-decay

Question # 16

𝑎, 𝖰 𝒂𝒏𝒅 radiations come out of radioactive substance:

Question # 17

When the radioactive nucleus emits a beta particle, the proton neutron ration:

Question # 18

A count rate 240 per minute reduces to 30 counts per min in 1 hour. The half-life of source is:

Question # 19

Beta particles have less ionizing power than that of alpha particles because:

Question # 20

The number of electrons in a nucleus X of atomic number Z and mass number A is:

Submit

Prepare Complete Set Wise MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test MCQs Online With Answers


Top Scorers Of MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test MCQ`s Test

  • U
    Unzila Ikhlaq 07 - Sep - 2024 08 Min 03 Sec 19/20
  • I
    Inbsaat Maryam 26 - Aug - 2024 08 Min 42 Sec 19/20
  • A
    ABBAS ALI 03 - Sep - 2024 03 Min 36 Sec 18/20
  • A
    Aliza shahbaz 30 - Aug - 2024 05 Min 10 Sec 17/20
  • A
    Azan Awan 17 - Sep - 2024 03 Min 43 Sec 16/20
  • 0
    008 Areeba Zulfiqar 19 - Jul - 2024 06 Min 07 Sec 16/20
  • N
    Noor ul Eman 05 - Sep - 2024 07 Min 16 Sec 16/20
  • E
    Esha Malik 25 - Jul - 2024 08 Min 01 Sec 16/20
  • H
    Hassan Shaikh 27 - Nov - 2024 03 Min 42 Sec 15/20
  • M
    Muhammad Wahab 17 - Aug - 2024 08 Min 36 Sec 15/20
  • S
    Sadia Sadia 31 - Oct - 2024 08 Min 38 Sec 14/20
  • M
    Mashal Islam 17 - Aug - 2024 09 Min 33 Sec 14/20
  • S
    Sharjeel Khan 03 - Sep - 2024 06 Min 57 Sec 13/20
  • A
    abdul Rehman 17 - Sep - 2024 08 Min 35 Sec 13/20
  • H
    Hoor 09 - Aug - 2024 11 Min 15 Sec 13/20
Sr.# Question Answer
1 When a radioactive nucleus emits a 𝖰 −paritcles, the mass number of the atom:
A. Increases by one
B. Decreases by one
C. Remains the same
D. Decreases by four
2 The example of nuclear fusion is:
A. Formation of barium and krypton from uranium
B. Formation of plutonium -235 from uranium -235
C. Formation of helium from hydrogen
D. Formation of water from hydrogen and oxygen
3 A count rate 240 per minute reduces to 30 counts per min in 1 hour. The half-life of source is:
A. 20min
B. 60min
C. 80min
D. 90min
4 The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is:
A. 12days
B. 10days
C. 22days
D. 36days
5 Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:
A. Mass of the nucleus increases
B. Mass of the nucleus decreases
C. Charge on the nucleus increases
D. Charge number decreases
6 The phenomenon of radioactivity is associated with:
A. Fission of nucleus
B. Disintegration of neutrons
C. Emission of spectral lines
D. Spontaneous disintegration of the nuclei of atoms
7 The most penetrating radiations out of the following is that of
A. 𝛾-rays
B. β-rays
C. α-particles
D. X-rays
8 Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment of about the same size. This process is accompanied by the emission of several:
A. Protons and positrons
B. 𝛼 −partilces
C. neutrons
D. Protons and 𝛼 −partilces
9 Half-life of radon gas is:
A. 1620 years
B. 3.8 days
C. 7 days
D. 11 days
10 The binding energy per nucleon is:
A. Greater for heavy nuclei
B. Least for heavy nuclei
C. Greatest for light nuclei
D. Greatest for medium nuclei
11 In 420 days, the activity of a sample of polonium (Po) fell to one-eight of its initial value. The half-life of polonium is :
A. 140days
B. 45days
C. 87days
D. 90days
12 𝑎, 𝖰 𝒂𝒏𝒅 radiations come out of radioactive substance:
A. Spontaneously
B. When it is put in a reactor
C. When it is heated
D. Under pressure
13 When a radioactive nucleus remits a beta particle, the proton neutron ratio:
A. Decreases
B. Increases
C. Remain same
D. None of the above
14 A radioactive nucleus can emit:
A. Electron
B. 𝛼 particles
C. Positron
D. Any of these
15 When the radioactive nucleus emits a beta particle, the proton neutron ration:
A. increases by one
B. Remains same
C. Decreases by one
D. Decreases by four
16 If the radioactive substance reduces to 𝟏 𝟏𝟔 PHYSICS of its original mass in 40 days then its half-life is:
A. 10days
B. 20days
C. 40days
D. 4days
17 The fusion of hydrogen into helium is more likely to take place:
A. At high temperature and high pressure
B. At high temperature and low pressure
C. At low temperature and low pressure
D. At low temperature and high pressure
18 During a negative β-decay
A. An atomic electron is ejected
B. A neutron in the nucleus decays emitting an electron
C. An electron which already present within the nucleus is ejected
D. A part of binding energy of nuclei is converted into electron
19 The mother and daughter elements with the emission of 𝖰 − 𝒓𝒂𝒚𝒔, are called:
A. Isotopes
B. Isobars
C. Isomers
D. Isodiapheres

Test Questions

Is this page helpful?