Physics MCQ 2026 Physics Mcq Physics MCQs for all competitive exams

Question number one, which effect explains the red color of the sun at sunset? Correct option is Scattering applied. Question number two. Which instrument is used to measure very small electric currents? Correct option is Galvanometer. Question number three. Which law explains the rise of oil in lamp wick? Correct option is Capillary action. Question number four. Which force keeps planets in orbit around the sun? Correct option is Gravitational force. Question number five. Which radiation has the longest wavelength? Correct option is Radio waves. Question number six. Which radiation is the shortest wavelength? Right option is Gamma rays? Question number seven. Which metal is used in making lighting conductors? Right option is Copper question number eight. Which law explains why we wear seat belt? Correct option is Newton's first law? Question number nine. Which principle is used in hydraulic lifts? Correct option is Pascala. Question number 10. Which planet has the strongest gravitational field? Correct option is Jupiter. Question number 11. Which scientist explain the photoelectric effect? Correct option is Albert Einstein. Question number 12. Which scientist proposed the wave nature of electrons? Correct option is Lois Brogley. Question number 13. Which law states that current is directly proportional to voltage? Right option is Ohm's law. Question number 14. What is the speed of sound in ear at room temperature? Correct option is 343 m/s. Question number 15. Which instrument is used to measure potential difference? Correct option is Oldmeter. Question number 16. The effect when an electric current passes through conductor producing heat is called. Correct option is Jewel heating effect. Question number 17. The energy stored in object due to its position or condition is called. The right option is Potential energy. Question number 18. What happens to the speed of light when it enters denser medium? Correct option is It decreases. Question number 19. What is the unit used to measure magnetic field strength? Correct option is Tesla. Question number 20. The property of body to resist change in its state of motion is called. Correct option is inertia. Question number 21. The region around magnet where its effect can be felt is called. Right option is Magnetic field. Question number 22. Which type of mirror is used by dentist to examine teeth? Correct option is Concave mirror. Question number 23. Which color of light has the highest frequency? Correct option is Violet. Question number 24. Which phenomena proves that light is transverse waves? Correct option is Polarization. Question number 25. Which phenomena causes pencil in water to appear bent? Correct option is Refraction. Question number 26. Which property of light remains unchanged when it enters another medium? Correct option is frequency. Question number 27. Which light shows maximum scattering in the atmosphere? Correct option is blue. Question number 28. Which physical quantity is the rate of change of momentum? The right option is Force. Question number 29. When two bodies collide elastically, which quantity remain constant? Correct option is Kinetic energy. Question number 30. If momentum of body is doubled, its kinetic energy becomes correct option is Four times. Question number 31. What type of collision conserves both momentum and kinetic energy? Correct option is elastic collision. Question number 32. Which quantity change when force acts on moving body? Correct option is Momentum. Question number 33. In which type of collision do two objects stick together after collision? Correct option is Perfectly inelastic. Question number 34. Which law of motion is based on the concept of momentum? The right option is Second law. Question number 35. horse pulls cart with constant speed. What type of work is done by the horse? Correct option is Positive work. Question number 36. What is the work done when body moves parallel to the direction of force? Correct option is Maximum. Question number 37. Which property of wave change when it passes from one medium to another? The right option is Velocity. Question number 38. What happens to the sound wavelength in ear when temperature increases? Correct option is Increases. Question number 39. The apparent change in frequency due to relative motion between source and observer is called. Correct option is Dumpler effect. Question number 40. What is produced when two waves of slightly different frequencies interfere? Correct option is Beats. Question number 41. Which of the following materials transmits sound fastest? Correct option is Steel. Question number 42. Which device is used to measure frequency of sound waves? The right option is Sonometer. Question number 43. What is the direction of magnetic field inside current carrying solenoid? Correct option is Along the axis. Question number 44. The device which works on the principle of electromagnetic induction is correct option is Transformer. Question number 45. Which law is used to find current and voltage in circuit? Correct option is Ohms law? Question number 46. Which material is commonly used for electric resistance wires? Correct option is Nikrome. Question number 47. Which physical quantity remains same in series connection? Correct option is Current. Question number 48. Which physical quantity remains same in parallel connection? Correct option is Voltage. Question number 49. Which device is used to protect an electric circuit from overload? Right. Option is Fuse. Question number 50. Which law relates the angle of incidence and angle of refraction of light? Correct option is snail's law.