Scope and progress of physics - class-XI
scope and progress of physics
Questions
Classical physics is applicable to the
- microscopic world
- macroscopic world
- both microscopic and macroscopic world
- cannot say
Which of the following statements is not correct. ?
- Physics is the study of nature and natural phenomena.
- Physics and technology are not related to each other.
- Electrodynamics deals with electric and magnetic phenomena associated with charged and magnetic bodies.
- The physical quantities that remain unchanged in a process are called conserved quantities.
What is the two principal thrust in Physics?
- Unification and Reduction
- Unification and Oxidation
- Magnification and Reduction
- Simplification and Reduction
The approach to derive the properties of a bigger, more complex, system from the properties and interactions of its constituent simpler parts is called ____________.
- Reduction
- Simplification
- Unification
- Modification
Which of the following scientific phenomenon is involved in the generation of Hydroelectric power?
- Motion of charged particles in electromagnetic fields
- Conversion of gravitational potential energy into electrical energy
- Bernoullis principle in fluid dynamics
- Trapping and cooling of atoms by laser beams and magnetic fields.
Which of the following does not comes under microscopic forces?
- Normal force
- Tension force
- Frictional force
- All of these
The electric generator is based on which scientific principle?
- Reflection of ultrasonic waves
- Superconductivity
- Faradays laws of electromagnetic induction
- Magnetic confinement of plasma
Which of the following phenomena does not come under macroscopic domain?
- Phenomena at laboratory scales
- Phenomena at terrestrial scales
- Molecular and nuclear phenomena
- Phenomena at astronomical scales
Bullet trains are example of invention related to which fields ?
- Medicine
- Transportation
- Education
- None of these
Heliocentric theory was proposed by ................
- Copernicus
- Ptolemy
- Newton
- Tychobrahe
Nuclear power plant is example of invention related to which field ?
- Electricity
- Education
- E learning
- Medication
Physics is sometimes referred to as exact science. Because.
- Physics interacts with almost all the sciences
- Due important is given for the measurement of quantities
- It involves philosophy
- Physics is related more closely to mathematics than any other science
Which among the following has the strongest intermolecular force between their molecules?
- Milk
- Water
- Sodium chloride
- Air
- None of these
Mass of a material varies with temperature.
- True
- False
- Nither
- Either
Sun spins around once every
- $26$ days
- $27.4$ days
- $27$ cas
- $30$ days
Electron microscope is based on which scientific principle?
- Light amplification by stimulated emission of radiation
- Wave nature of electrons
- Digital logic
- Reflection of ultrasonic waves
Werner Heisenberg is known for his work on
- Inelastic scattering of light by molecules
- Quantum mechanics: Uncertainty principle
- Theory of super conductivity
- Expanding universe
Bose-Einstein condensate is based on which scientific principle?
- Magnetic confinement of plasma
- Trapping and cooling of atoms by laser beams and magnetic fields
- Wave nature of electrons
- Motion of charged particles in electromagnetic fields
What was the major contribution/discoveries of Archimedes?
- Principle of buoyancy; Principle of the lever
- Wave theory of light
- Laws of electromagnetic induction
- Generation of electromagnetic waves
The Giant Metrewave Radio Telescope (GMRT) is related to _________________.
- Superconductivity
- Generation, propagation and detection of electromagnetic waves
- Detection of cosmic radio waves
- Trapping and cooling of atoms by laser beams and magnetic fields