ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

00:00
Question # 1

When a charged particle passes through matter, it produces ionization, this effect is used in

Question # 2

Structure of the nucleus was explained by

Question # 3

Which are not the elementary particles?

Question # 4

The time required for a radioactive material to decrease in active by one half is called

Question # 5

Radioactivity

Question # 6

The emission of radiations take place in elements, having charge number greater than

Question # 7

Phenomenon of radioactivity is due to disintegration of

Question # 8

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

Question # 9

Neutron was discovered by

Question # 10

How much time, theα-particle more massive than an electron

Question # 11

Heavy water is made of one oxygen atom and two atoms of:

Question # 12

The diameter of an atom is of the order

Question # 13

β-particles are easily deflected by collisions than heavy

Question # 14

U-238 present in the natural uranium is about:

Question # 15

Nucleus consists of

Submit

Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQ`s Test

  • A
    Amjad Ali 25 - Dec - 2024 00 Min 04 Sec 60/60
  • R
    Rahimsiddiqui Siddiqui 04 - Jul - 2024 00 Min 06 Sec 60/60
  • M
    Muhammad 24 - May - 2024 00 Min 09 Sec 60/60
  • F
    Farzand Shah Farzand Shah 31 - May - 2024 00 Min 41 Sec 60/60
  • B
    Bilal Javed 02 - Jun - 2024 01 Min 48 Sec 60/60
  • S
    suzi 11 - Feb - 2026 01 Min 20 Sec 56/60
  • M
    M Umer Arain 28 - Dec - 2024 00 Min 06 Sec 55/60
  • A
    Abdul Samad 03 - Jun - 2024 01 Min 56 Sec 50/60
  • S
    Sammad Ali 30 - May - 2024 02 Min 33 Sec 50/60
  • M
    Malaika Waqar 20 - Apr - 2024 03 Min 12 Sec 50/60
  • U
    umaima mubashar 31 - May - 2024 05 Min 21 Sec 50/60
  • Z
    Zargaii 92 28 - May - 2024 03 Min 56 Sec 45/60
  • A
    Abdullah Sadakat Ali 27 - May - 2024 05 Min 03 Sec 45/60
  • A
    Ayan Khan 09 - Aug - 2024 01 Min 58 Sec 40/60
  • M
    Muhammad Haseeb 25 - Nov - 2024 02 Min 17 Sec 40/60

ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
A. A - Z
B. A + Z
C. Z
D. A
2 After alpha decay the atomic number of the atom
A. increase by four
B. decreases by two
C. increases by two
D. decrease by four
3 The number if neutrons in the nucleus of 92U235are
A. Infinite
B. 92
C. 235
D. 143
4 According to Rutherford atomic model, the positive charge in an atom
A. is concentrated at its centre
B. is in the form of positive electron at same distance from its centre
C. is spread uniformly through its volume
D. none of these
5 The counter, which also provides the power to the G.M. tube is called:
A. Thin mica window
B. thin glass window
C. Airy window
D. Wooden window
6 γ-rays behave like a particle because they explain the
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
7 Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
A. polonium uranium
B. uranium and radium
C. polonium and radium
D. none of these
8 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
9 The rate of decay of a radioactive substance
A. decrease exponentially with time
B. decreases linearly with time
C. increases linearly with time
D. increases exponentially with time
10 Examples of moderators used in a fission reactor is/are:
A. Water
B. Heavy water
C. Carbon
D. Hydrocarbon

Test Questions

Is this page helpful?