This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 21 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A bicycle has an average speed of 2 m/sec. this means ..... A) It can travel 4 meters in 2 seconds. B) In 2 second, it travels 1 meter. C) It takes 2 seconds to travel 1 meter. D) It can travel 2 kilometers in one hour. Show Answer Correct Answer: A) It can travel 4 meters in 2 seconds. 2. According to Ohm's Law, current equals the voltage divided by the ..... A) Resistance. B) Inductance. C) Capacitance. D) Conductance. Show Answer Correct Answer: A) Resistance. 3. Which of the following is the discovery of sir CV Raman A) Telescope. B) Television. C) Raman effect. D) Raman spectroscopy. Show Answer Correct Answer: C) Raman effect. 4. When water is heated from 0$^ \circ$ Celsius to 100$^ \circ$Celsius, the volume of water A) Increase gradually. B) Degrease gradually. C) First increase, then decrease. D) First decrease, then increase. Show Answer Correct Answer: D) First decrease, then increase. 5. When the resulting vector has an x-component positive and y-component angle, then at what direction will the angle be? A) North of East. B) West of North. C) South of West. D) East of South. Show Answer Correct Answer: D) East of South. 6. On a rainy day, small oil films on water show brilliant colours. This is due to A) Diffraction. B) Dispersion. C) Polarization. D) Interference. Show Answer Correct Answer: D) Interference. 7. What will happen if you hold a polarized sunglass in front of you and rotate them. While looking at the blue sky, you will see the sky get ..... A) Brighter. B) Dimmer. C) Invisible. D) Brighter and dimmer. Show Answer Correct Answer: D) Brighter and dimmer. 8. Course along which someone or something moves A) Person. B) Speed. C) Direction. D) Movement. Show Answer Correct Answer: C) Direction. 9. The massin (kg) of a block of wood if its volume ( $ V=0.05\ m^3$ ) anddensity ( $ \rho=600\ \frac{kg}{m^3}$ )is A) 60. B) 30. C) 12000. D) 50. Show Answer Correct Answer: B) 30. 10. Which best describes why the moon orbits the Earth ..... according to General Relativity? A) Gravity force from the Earth pulls on the moon. B) Gravity force from the Earth pushes on the moon. C) The moon moves around the curvature in spacetime created by the Earth's mass. D) None of above. Show Answer Correct Answer: C) The moon moves around the curvature in spacetime created by the Earth's mass. 11. Out of the following pairs, which one does not have identical dimension? A) Work and Torque. B) Impulse and Momentum. C) Moment of inertia and moment of a force. D) Angular momentum and Planck's constant. Show Answer Correct Answer: C) Moment of inertia and moment of a force. 12. What is displacement? A) Longest distance covered by a body in a random direction. B) Shortest distance covered by a body in a random direction. C) Shortest distance covered by a body in a definite direction. D) Longest distance covered by a body in a definite direction. Show Answer Correct Answer: C) Shortest distance covered by a body in a definite direction. 13. The following value that could be an index of refraction of a transparent material is A) 1.5. B) 0.9. C) -1.3. D) 0.5. Show Answer Correct Answer: A) 1.5. 14. ..... is a measure of the pull of gravity on an object. A) Matter. B) Mass. C) Weight. D) None of above. Show Answer Correct Answer: C) Weight. 15. Chandrayaan-2 Mission was launched by which vehicle? A) GSLV MKIII. B) PSLV C11. C) GSLV F11. D) PSLV C45. Show Answer Correct Answer: A) GSLV MKIII. 16. Which procedure should NOT be considered in finding the resultant vector graphically? A) Use component method. B) Use head to tail method. C) Use ruler and protractor. D) Use scale. Show Answer Correct Answer: D) Use scale. 17. The mass per unit volume is the A) Density. B) Viscosity. C) Surface tension. D) Pressure. Show Answer Correct Answer: A) Density. 18. What is the unit of measurement used for power? A) Amps. B) Volts. C) Watts. D) None of above. Show Answer Correct Answer: C) Watts. 19. Which of the following is the SI unit for Luminous Intensity? A) Ampere. B) Kelvin. C) Candela. D) Mole. Show Answer Correct Answer: C) Candela. 20. Select the correct one about oxygen A) Oxygen is dissolved in water. B) Oxygen is harmful for us. C) Oxygen is 30 percent in air. D) None of above. Show Answer Correct Answer: A) Oxygen is dissolved in water. ← PreviousNext →Related QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books