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Recent Developments in Physics Model Question Paper

12th Standard

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Physics

Time : 01:00:00 Hrs
Total Marks : 35
    7 x 1 = 7
  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 alloys used for muscle wires in Robots are _____.

    (a)

    Shape memory alloys

    (b)

    Gold copper alloys

    (c)

    Gold silver alloys

    (d)

    Two dimensional alloys

  3. The technology used for stopping the brain from processing pain is _____.

    (a)

    Precision medicine

    (b)

    Wireless brain sensor

    (c)

    Virtual reality

    (d)

    Radiology

  4. George Devel invented the first digitally operated programmable robot called ____________.

    (a)

    Unimate

    (b)

    Robotics

    (c)

    Motors

    (d)

    Generators

  5. In __________ it was established that atoms are made up of electrons, protons and neutrons

    (a)

    1945

    (b)

    1923

    (c)

    1930

    (d)

    1927

  6. Zno is an example of __________

    (a)

    Bulk solid

    (b)

    Nano solid

    (c)

    Bulk solid and Nano solid

    (d)

    None of the above

  7. A single strand of DNA, the building block of all living things, is about _________ nanometers wide.

    (a)

    Two

    (b)

    Three

    (c)

    Four

    (d)

    Five

  8. 1 x 2 = 2
  9. Assertion: Muscle wires are thin strands of wire made of shape memory alloys.
    Reason: They can contract by 5% when electric current is passed through them.
    Codes:
    (a) Assertion and Reason are correct and Reason is the correct explanation of Assertion.
    (b) Assertion and Reason are true but Reason is the false explanation of the Assertion.
    (c) Assertion is true but Reason is false.
    (d) Assertion is false but Reason is true.

  10. 1 x 2 = 2
  11. (a) Piezo motors Industrial robots
    (b) Nano solid Less than 100 nm
    (c) Bulk soild Exceeds 100 nm
    (d) Human Robot Delta
  12. 1 x 1 = 1
  13. Incorrect Statements
    (I) Every galaxy has black hole at its center.
    (II) Cosmology deals with formation of stars.
    (III) Higgs particles also known as God particles.
    (IV) Robots are not powered by batteries

  14. 6 x 2 = 12
  15. Distinguish between Nanoscience and Nanotechnology.

  16. What is the difference between Nano materials and Bulk materials?

  17. What is nanotechnology?

  18. What is the two important phenomena that govern the nano particles?

  19. What is Cosmology?

  20. Write thekey components of robot.

  21. 2 x 3 = 6
  22. Discuss the applications of Nanomaterials in various fields.

  23. Write the application of nano robots in medical field?

  24. 1 x 5 = 5
  25. Write the advantages and disadvantages of robotic.

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