ICS Part 2 Physics Chapter 20 Short Questions Preparation


12th Class Physics
Short Questions Preparation

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Online Short Questions For Chapter 9 "ICS Part 2 Physics Chapter 20 Short Questions Preparation "

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Physics - ICS Part 2 Physics Chapter 20 Short Questions Preparation

Question # 1

What is CAT scanner?

  • Ans 1: A vastly improved x-rays technique is computerized axial tomography: the corresponding instrument is called CAT scanner.In CAT scanning a number of different orientations.Computer is attached to construct picture,Density difference of the order of one percent can be detected,Tumors and other anomalies much too small to be seen with older techniques can be detected.
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Prepare Complete Set Wise Questions For Chapter 9 "ICS Part 2 Physics Chapter 20 Short Questions Preparation "

ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 1

Question # 1

What is CAT scanner?

  • Ans 1: A vastly improved x-rays technique is computerized axial tomography: the corresponding instrument is called CAT scanner.In CAT scanning a number of different orientations.Computer is attached to construct picture,Density difference of the order of one percent can be detected,Tumors and other anomalies much too small to be seen with older techniques can be detected.
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ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 2

Question # 1

Can the electron in the ground state of hydrogen atom absorb a photon of energy 13.6 eV greater than 13.6 eV?

  • Ans 1: Yes an electron in the ground state of hydrogen atom can absorb a photon of energy 13.6 eV and greater than 13.6 eV.
    ionization energy of hydrogen atom in ground state is 13.6 eV.So if hydrogen absorb a photon of energy greater than 13.6 eV than the surplus energy of photon appear as K.E of electron
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ICS Part 2 Physics Chapter 20 Short Questions Preparation - Set 3

Question # 1

Write two postulate of Bohr's model of H-atom.

  • Ans 1:
    • An electron ,bound to the nucleus in an atom,can moved around the nucleus in certain circular orbits without radiating,These orbits are called the discrete stationary orbits.
    • Only those stationary orbits are allowed for which orbital angular momentum is equal to an integral multiple mvr=nh/2π.
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ICS Part 2 Physics Chapter 20 Short Questions Preparation

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