ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

ECAT Physics Chapter 21 Nuclear Physics

00:00
Question # 1

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

Question # 2

Neutron was discovered in

Question # 3

Binding energy per nucleus is

Question # 4

The nucleus/nuclei of hydrogen is/are:

Question # 5

The unit of decay constant is

Question # 6

Electrons are

Question # 7

According to Rutherford atomic model, the positive charge in an atom

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

Rate of decay is actually described by.

Question # 10

Radioactivity was discovered by

Question # 11

Gamma rays consist of steam of

Question # 12

Curie is a unit of

Question # 13

Radioactivity is

Question # 14

The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called

Question # 15

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

Submit

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


Topic Test

00:00
Submit

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

  • H
    Heer 06 - Jan - 2024 00 Min 51 Sec 60/60
  • M
    maha dhedhi 29 - Jul - 2022 00 Min 52 Sec 60/60
  • B
    Bushra Rehmat 14 - Jul - 2023 02 Min 07 Sec 60/60
  • M
    Mian House 31 - May - 2024 02 Min 30 Sec 55/60
  • M
    Muhammad Iftikhar 17 - Mar - 2023 02 Min 38 Sec 55/60
  • A
    Abdullah Baloch 10 - Aug - 2024 03 Min 56 Sec 55/60
  • M
    Mohsin iftikhar 09 - Mar - 2024 08 Min 35 Sec 55/60
  • S
    Sana Hashim 23 - May - 2022 01 Min 50 Sec 50/60
  • A
    Ali Jaan 15 - Apr - 2022 01 Min 47 Sec 45/60
  • M
    Muqadas Zahra 14 - Apr - 2022 04 Min 33 Sec 45/60
  • O
    omer attique 14 - Mar - 2023 02 Min 00 Sec 40/60
  • T
    tehreemnadeem 12 - Jul - 2022 02 Min 13 Sec 40/60
  • H
    Hamza Nawaz 05 - Jun - 2024 02 Min 42 Sec 40/60
  • A
    asma 19 - Aug - 2024 02 Min 46 Sec 40/60
  • A
    Abdullaj Yousaf 15 - Feb - 2023 03 Min 57 Sec 40/60

ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 In his experiment on nuclear reactions, Rutherford bombardedα particles on:
A. Nitrogen
B. Hydrogen
C. Lead
D. Oxygen
2 Neutron was discovered by
A. Curie
B. Roentgen
C. Chadwick
D. Rutherford
3 Charge on neutron is
A. 1.6 x 10-19C
B. zero
C. -1.6 x 10-19C
D. 1.2 x 10-19C
4 If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by
A. -4
B. 4
C. 2
D. 1
5 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
6 For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is
A. A - Z
B. A
C. Z
D. A + Z
7 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
8 Charge on proton is
A. 1.59 x 10-9C
B. 1.59 x 10-7C
C. -1.59 x 10-19 C
D. 1.59 x 10-19C
9 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
10 The nuclei of an element having the same charge number but different mass numbers are called:
A. Isobars
B. Isotopes
C. Isomers
D. Isobaric

Test Questions

Is this page helpful?