New ! Physics MCQ Practise Tests



12st Standard Physics Recent Developments in Physics English Medium Free Online Test One Mark questions 2020 - 2021

12th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Physics

Time : 00:10:00 Hrs
Total Marks : 10
    Answer all the questions
    10 x 1 = 10
  1. The particle size of ZnO material is 30 nm. Based on the dimension it is classified as _____.

    (a)

    Bulk material

    (b)

    Nanomaterial

    (c)

    Soft material

    (d)

    Magnetic material

  2. The blue print for making ultra durable synthetic material is mimicked from _____.

    (a)

    Lotus leaf

    (b)

    Morpho butterfly

    (c)

    Parrot fish

    (d)

    Peacock feather

  3. The alloys used for muscle wires in Robots are _____.

    (a)

    Shape memory alloys

    (b)

    Gold copper alloys

    (c)

    Gold silver alloys

    (d)

    Two dimensional alloys

  4. The particle which gives mass to protons and neutrons are _____.

    (a)

    Higgs particle

    (b)

    Einstein particle

    (c)

    Nanoparticle

    (d)

    Bulk particle

  5. __________ Scanning Electron Micrograph (SEM) showing the nano structures on the surface of a leaf from a lotus plant

    (a)

    Parrot fish

    (b)

    Morpho butterfly

    (c)

    Lotus leaf surface

    (d)

    Peacock feathers

  6. Best example for applications of nanotechnology is ______________.

    (a)

    Chemical industry

    (b)

    Engineering

    (c)

    medicine

    (d)

    all of these

  7. Muscle wires can contract by _________ when electric current is passed through them.

    (a)

    5%

    (b)

    7%

    (c)

    25%

    (d)

    50%

  8. Chinese scientists have created the world's first autonomous _________ to combat caner tumours.

    (a)

    RNA Robot

    (b)

    DNA Robot

    (c)

    m RNA Robot

    (d)

    r RNA Robot

  9. Zno is an example of __________

    (a)

    Bulk solid

    (b)

    Nano solid

    (c)

    Bulk solid and Nano solid

    (d)

    None of the above

  10. Bulk particles of nanoparticles are synthesized by ___________

    (a)

    Top - down approach

    (b)

    Bottom - up approach

    (c)

    Top - top approach

    (d)

    Bottom - real approach

*****************************************

Reviews & Comments about 12st Standard Physics Recent Developments in Physics English Medium Free Online Test One Mark questions 2020 - 2021

Write your Comment