Top most question asked question in general question related to physics

1
18
  • Under which category Magnetic, electrostatic and gravitational forces come? – Non-contact forces
  • By which Singal a television channel is characterised? – Frequency of transmitted signal
  • What is a good conductor while carrying current? – Electrically neutral
  • What is the device used for measuring the wavelength of X-rays? – Bragg Spectrometer
  • Which is responsible for the working of Newton’s colour disc experiment? – Persistence of vision
  • Who is the founder, of quantum theory of radiation? – Plank
  • What is Photon? – The fundamental unit/quantum of Light
  • When does a liquid disturbed by stirring cometo rest? – Due to Viscosity
  • No matter how far you stand from a mirror, your image appears erect, How is the mirror likely to be? – Either plane or convex
  • Why does white light into its components? – Due to dispersion
  • What type of lenses are used in movie projectors? – Convex
  • During which radioactivity radiation is not emitted? – Cathode rays
  • An object is undergoing a non-accelerated motion. What is Its rate of change in momentum? – Zero
  • A particle is moving freely. Then its– kinetic energy is always greater than zero
  • If an object undergoes a uniform circular motion, then What will be? – Its velocity changes
  • In how many hours does geostationary satellite complete its one revolution around the earth? – 24 hours
  • MCB, which cuts off the electricity supply in case of short-circuiting, on which effect does it work? – Magnetic effect of current
  • Due to which Phenomenon are advanced sunrise and delayed sunset found in the sky? – Refraction of sunlight
  • Due to which Phenomenon is the formation of colours in soap bubbles? – Interference of light
  • On which principle a pressure cooker works? – Elevation of boiling point of water by application of pressure
  • Why does pressure of a gas increases due to increase of its temperature? – Kinetic energies of die gas molecules are higher
  • By which Newton’s may the weight of an object be assigned? – Laws of gravitation
  • With which field is a current carrying conductor associated? – A magnetic field
  • On which the linear expansion of a solid rod is independent? – On its time of heat flow
  • Which doesn’t have any effect on velocity of sound? – Pressure
  • In which network, all devices are connected to a device called a’ hub and they communicate through it? – Star network
  • A motor vehicle is moving in a circle with a uniform speed. Where will be the net acceleration of the vehicle? – towards the centre of circle
  • Which property of a proton may change while it moves freely in a magnetic field? – Velocity
  • During sunrise and sunset, why does sun appears reddish-orange? – Reddish-orange light is least scattered by the atmosphere
  • Why are ball bearings used in bicycles, cars, etc? – The effective area of contact between the wheel and axle is reduced

LEAVE A REPLY

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.