Multiple Choice Questions (MCQ) on Nuclear Physics

Multiple Choice Questions (MCQ) on Nuclear Physics

 

Which of them are atomic models?

  1. Thomson’s plum puddling model
  2. Rutherford’s nuclear model
  3. Bohr’s model
  4. Sommerfeld’s model
  1. i & ii
  2. i, ii & iii
  3. ii, iii & iv
  4. All of these

(Ans:d)

 

The nucleus consists of

  1. neutrons
  2. protons
  3. neutrons and protons
  4. electrons and neutrons

(Ans:c)

 

Nucleus is

  1. positively charged
  2. negatively charged
  3. neutral
  4. charge keeps on changing

(Ans:a)

 

Proton has the charge

  1. 1637 times of an electron
  2. 1737 times of an electron
  3. 1837 times of an electron
  4. 1937 times of an electron

(Ans:c)

 

Neutrons has the charge

  1. 1639 times of an electron
  2. 1739 times of an electron
  3. 1839 times of an electron
  4. 1939 times of an electron

(Ans:c)

 

As per modern theory, the atom has a diameter of about

  1. 10^-4mm
  2. 10^-5mm
  3. 10^-6mm
  4. 10^-7mm

(Ans:d)

 

In neutral atom, the electrons are bound to the nucleus by

  1. Magnetic force
  2. Electrostatic force
  3. Friction force
  4. Centripetal force

(Ans:b)

 

The limited number of electrons in ‘M’ shell is

  1. 2
  2. 8
  3. 18
  4. 32

(Ans:c)

 

The number of electrons in any orbit is

  1. 2n^2
  2. 3n^2
  3. 4n^2
  4. 5n^2

Where ‘n’ is the serial number of orbit

(Ans:a)

 

One atomic mass unit (AMU) is equal to

  1. 1.66 x 10^-20 g
  2. 1.66 x 10^-22 g
  3. 1.66 x 10^-24 g
  4. 1.66 x 10^-26 g

(Ans:c)