Question Detail All planets move around the sun in elliptical orbits, with the sun being at rest at one focus of the orbit. TrueFalse Answer: Option A Similar Questions : 1. Device used to measure potential difference between two points in a circuit is ? AmmeterGalvanometerVoltmeterNone of above Answer: Option C 2. Orbital speed of a satellite is dependent of its mass. True False Answer: Option BExplanation:Orbital speed of a satellite is independent of its mass. 3. Which instrument is used to measure depth of ocean ? GalvanometerFluxmeterEndoscopeFathometer Answer: Option DExplanation:Galvanometer - measures electric current, Fluxmeter - measures magnetic flux, Endoscope - used to examine internal parts of the body. 4. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this ? Newton first lawNewton second lawNewton third lawPrinciple of conservation of linear momentum Answer: Option D 5. What is unit of Electrical Capacity ? henryfaradvoltohm Answer: Option BExplanation:henry is unit of Magnetic Induction, volt is unit of Potential Difference, ohm is unit of Electric Resistance. Read more from - Physics Questions Answers