Tag: bharat and science

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Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

Physics is sometimes referred to as exact science. Because.

  1. Physics interacts with almost all the sciences

  2. Due important is given for the measurement of quantities

  3. It involves philosophy

  4. Physics is related more closely to mathematics than any other science
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

More importance is given to measurement of quantities, i.e., qualitative analysis. 

Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

Which among the following has the strongest intermolecular force between their molecules?

  1. Milk

  2. Water

  3. Sodium chloride

  4. Air

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Intermolecular forces: water has hydrogen bonding (strongest), milk contains water and other components with weaker overall forces, sodium chloride is ionic solid (not about intermolecular forces between molecules in liquid/gas state), air has very weak London dispersion forces. Water's extensive hydrogen bonding network gives it the strongest intermolecular forces among the options.

Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

Electron microscope is based on which scientific principle?

  1. Light amplification by stimulated emission of radiation

  2. Wave nature of electrons

  3. Digital logic

  4. Reflection of ultrasonic waves
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Electron microscope is based on the principle of De-Broglie hypothesis of wave-nature of electrons.

Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

Werner Heisenberg is known for his work on 

  1. Inelastic scattering of light by molecules

  2. Quantum mechanics: Uncertainty principle

  3. Theory of super conductivity

  4. Expanding universe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Answer is B

In quantum mechanics, the uncertainty principle, also known as Heisenberg's uncertainty principle, is any of a variety of mathematical inequalities asserting a fundamental limit to the precision with which certain pairs of physical properties of a particle, known as complementary variables, such as position and momentum, cannot be known simultaneously.

Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

Bose-Einstein condensate is based on which scientific principle?

  1. Magnetic confinement of plasma

  2. Trapping and cooling of atoms by laser beams and magnetic fields

  3. Wave nature of electrons

  4. Motion of charged particles in electromagnetic fields
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bose-Einstein  condensate is made by trapping and cooling of atoms by laser beams and magnetic fields.

Multiple choice physics bharat and science scope and progress of physics recent advancement in medical technology contribution of physics in technology and society

What was the major contribution/discoveries of  Archimedes?

  1. Principle of buoyancy; Principle of the lever

  2. Wave theory of light

  3. Laws of electromagnetic induction

  4. Generation of electromagnetic waves
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Archimedes discovered the principal of buoyancy when he was taking a both observed watts getting displaced when he got into the both tub.He also discovered the principle of the lever.(a)