TNPSC Physics question & answer - 2
Here we can learn TNPSC questions and answers for Tamil Nadu Public Service Commission (TNPSC) exams, physics questions and answers (set 2), this will also help you to score more marks in all competitive exams and entrance exams like UPSC, RRB, SSC, IBPS, SBI, NEET,... the questions from the ncert books. It is the best place to learn exam preparation study materials for all exams. Previous year's asked Physics questions and answers and also play Physics Quiz. This Quiz makes you more interesting. A list of TNPSC Physics questions and answers is given below.
List of TNPSC Physics MCQs
A list of TNPSC Physics questions and answers is given below.
1. Which of the following rays are not electromagnetic waves ? (a) X-rays (b) g-rays (c) b-rays (d) heat rays Ans-c 2. Curie is a unit of (a) energy of gamma rays (b) half-life (c) radioactivity (d) intensity of gamma rays Ans-c 3. The wettability of a surface by a liquid depends primarily on (a) density (b) angle of contact between the surface and the liquid (c) viscosity (d) surface tension Ans-b 4. Sprayer functions on (a) Bernoulli’s principle (b) Archimedes’s principle (c) Pascal’s law (d) Flotation principle Ans-a 5. Pressure Cooker cooks faster because (a) boiling point decreases with rise of pressure (b) it cooks the food at low pressure (c) higher temperature is attained for cooking (d) the material of the cooker is a good conductor Ans-c 6. Lens is made up of (a) pyrex glass (b) flint glass (c) ordinary glass (d) cobalt glass Ans-b 7. The atmospheric air is held to the Earth by (a) gravity (b) winds (c) clouds (d) rotation of the earth Ans-a 8. The device that can act as a complete electronic circuit is (a) junction diode (b) integrated circuit (c) junction transistor (d) zener diode Ans-b 9. The phenomenon which causes mirage is (a) interference (b) diffraction (c) polarization (d) total internal reflection Ans-d 10. The abbreviation LHC stands for which machine? (a) Light Heat Collider (b) Large Hadron Collider (c) Long Heavy Collider (d) Large High Collider Ans-b 11. Ice is packed in saw dust because (a) saw dust will not get melted easily. (b) saw dust is poor conductor of heat. (c) saw dust is a good conductor of heat. (d) saw dust does not stick to the ice. Ans-b 12. Hydraulic brakes work on the principle of (a) Thomson’s law (b) Newton’s law (c) Bernoulli’s theorem (d) Pascal’s law Ans-d 13. The work done by the string of a simple pendulum during one complete oscillation is equal to (a) total energy of the pendulum (b) kinetic energy of the pendulum (c) potential energy of the pendulum (d) zero Ans-d 14. An object covers distance which is directly proportional to the square of the time. Its acceleration is (a) increasing (b) decreasing (c) zero (d) constant Ans-d 15. When the milk is churned vigorously the cream from it is separated out due to (a) centripetal force (b) gravitational force (c) frictional force (d) centrifugal force Ans-d 16. The reddish appearance of the sun at sunrise and sunset is due to (a) the scattering of light (b) the polarisation of light (c) the colour of the sun (d) the colour of the sky Ans-a 17. A man in a train moving with a constant velocity drops a ball on the platform. The path of the ball as seen by an observer standing on the platform is (a) a straight line (b) a circle (c) a parabola (d) None of these Ans-c 18. In which of the following devices, the eddy current effect is not used? (a) electric heater (b) induction furnace (c) magnetic braking in train (d) electromagnet Ans-a 19. The depletion layer in the p-n junction region is caused by (a) drift of holes (b) diffusion of charge carriers (c) migration of impurity ions (d) drift of electrons Ans-b 20. Which of the following is a scalar quantity? (a) Velocity (b) Force (c) Angular momentum (d) Electrostatic potential Ans-d
Play Quiz
Play TNPSC Physics Quiz and gain knowledge. This Quiz makes you more interesting.
