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Multiple Choice Questions

It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?

  • Law of inertia

  • Netwon's second law

  • Newton's third law

  • Pascal's law


Speed of light is maximum in..............

  • vacuum

  • solids

  • liquids

  • gases


The bending of light when it passes around a corner or a slit is due to...............

  • reflection

  • refraction

  • diffraction

  • total internal reflection


What is the reason for formation of Mirage in desert?

  • Refraction of light

  • Reflection of light

  • Total internal reflection of light

  • Both Refraction and Total internal reflection of light


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Which of the following is not a vector quantity?

  • Acceleration

  • Electric Current

  • Force

  • Velcoity


Which one of the following is not a property of electromagnetic waves?

  • Electromagnetic waves do not show interference and diffraction.

  • Oscillating electric field and magnetic field are perpendicular to each other.

  • Electromagnetic waves are transverse waves.

  • Electromagnetic waves do not require a medium to propagate.


What is the S.I. unit of frequency?

  • Newton

  • Watt

  • Farad

  • Hertz


The phenomena of raising the outer edge of the curved roads above the inner edge to provide necessary centripetal force to the vehicles to take a safe turn is called .............

  • banking of roads

  • cornering of roads

  • elevation of roads

  • tempering of roads


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Convex mirror is generally used in

  • solar cookers

  • opthalmoscope

  • reflector for head light

  • rear view mirror


Which of the following is not a vector quantity?

  • Momentum

  • Displacement

  • Torque

  • Speed


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