Question Detail The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called Nuclear fusionNuclear fissionNuclear reactionFast breeding Answer: Option B Ad Similar Questions : 1. Which law is also called law of inertia ? Newton first lawNewton second lawNewton third lawAll of above Answer: Option A 2. radian per second is unit of MomentumMoment of InertiaFrequencyAngle Velocity Answer: Option DExplanation:unit of Momentum is kilogram meter per second, unit of Moment of Inertia is kilogram square meter, unit of frequency is Hertz. 3. Which instrument is used to record physical happenings at a distant place ? ThermostatTonometerTelemeterTransponder Answer: Option CExplanation:Thermostat - is used to regulate the temperature at a particular point. Tonometer - is used to measure the pitch of a sound, Transponder - is used to receive a signal and transmit a reply immediately. 4. Who discovered Diode Bulb ? Henry BecquerelSir J.S. FlemingLee De ForestArchemedes Answer: Option BExplanation:Sir J.S. Fleming discovered Diode Bulb in 1904, Lee De Forest discovered Triode Bulb in 1906, Archemedes discovered laws of floatation in 1827, Henry Becquerel discovered Radioactivity in 1896. 5. Light year is a unit of TimeLightDistanceIntensity of light Answer: Option C Read more from - Physics Questions Answers