Practice Physics GS Questions and Answers

• Where is the magnetic force of a bar magnet the strongest?
• When a passenger in a moving bus is suddenly thrown forward when the bus stops, this is explained by:
• How long does an image remain on the retina after the object is removed?
• Which phenomenon does a hologram use to create an image?
• According to Kepler’s third law of planetary motion, the square of the orbital period of a planet is proportional to the __________.
• What is the work done by a centripetal force on an object moving in a circular path at constant speed?
• What type of rays are used in a CT scan to visualize the internal structures of the human body?
• Match the following machines with their working principles: (i) Electric motor -  (a) Heat energy into mechanical energy (ii) Steam engine -  (b) Electri...
• If the Earth stopped rotating, what would happen to the apparent value of gravity (g) at different locations?
• What process causes white light to split into its constituent colors?
• Why does a lemon appear larger when viewed from the side of a glass of water?
• What is the electrical charge of a neutrino?
• Newton’s second law of motion primarily explains which of the following?
• Which of the following is not a recognized type of inertia?
• The pitch of a sound is primarily determined by which of the following?
• What is the SI unit of magnetic flux?
• When white light passes through a glass prism, which color deviates the least?
• The polarization of electromagnetic waves demonstrates that they are:
• When an electric current flows, electrons move from:
• In an electric motor, energy is transformed from:
• An athlete can jump farther by running before jumping due to which type of inertia?
• A sound with a single frequency is called a:
• Which of the following is not a natural polymer?
• Which law states that "the rate of heat loss of a body is directly proportional to the temperature difference between the body and its surroundings"?
• A body is thrown upward with an initial velocity of 20m/s. How much time will it take to reach its maximum height. (g=10m/s)
• The wave nature of matter was proposed by:
• Which law of thermodynamics states that energy cannot be created or destroyed?
• Which of the following gas is used in the manufacture of Vanaspati Ghee? 
• Which of the following vitamins are called fat-soluble vitamins?
• What is the SI unit of power?
• What type of lens is used to correct myopia (nearsightedness)?
• The charge of an electron is approximately:
• ‘Lubb-dupp’ sound is produced due to the action of
• You are asked to jog in a circular track of radius 35 m. Right one complete round on the circular track, your displacement and distance covered by you resp...
• In cricket match, while catching a fast moving ball, a fielder in the ground gradually pulls his hands backwards with the moving ball to reduce the velocit...
• A liquid is kept in a regular cylindrical vessel up to a certain height. If this vessel is replaced by another cylindrical vessel having half the area of c...
• Two identical piano wires have same fundamental frequency when kept under the same tension. What will happen if tension of one of the wire is slightly incr...
• The distance between the focus and the centre of curvature of a spherical mirror in terms of the radius of curvature R, is equal to:
• What happens to the electrostatic force between two charges when the distance between them decreases? 
• Which of the following is an alpha particle which is emitted in radioactivity?