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That material is:","choices":[{"text":"Germanium","value":"A"},{"text":"Silicon","value":"B"},{"text":"Copper","value":"C"},{"text":"Lead","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":161615,"question":"The branch of physics which is mainly concerned with the motion of bodies under the action of forces is called:","choices":[{"text":"Optics","value":"A"},{"text":"Mechanics","value":"B"},{"text":"Thermodynamics","value":"C"},{"text":"Astro physics","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":161614,"question":"The information from far side of the universe are gathered by:","choices":[{"text":"Radio telescope","value":"A"},{"text":"Microscope","value":"B"},{"text":"Telescope","value":"C"},{"text":"AtSpectro scpe","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":161613,"question":"Light year is unit of","choices":[{"text":"Time","value":"A"},{"text":"Distance","value":"B"},{"text":"Velocity","value":"C"},{"text":"Intensity of 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is not a base unit:","choices":[{"text":"Square meter","value":"A"},{"text":"Cubic meter","value":"B"},{"text":"Candela","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":161586,"question":"Moment of inertia is a ___________ quantity having unit of ______","choices":[{"text":"Scalar kg -m<sup>2</sup>","value":"A"},{"text":"vector kg-m<sup>2</sup>","value":"B"},{"text":"scalar kg m<sup>2</sup>/sec","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":161525,"question":"In man solar day, the number of seconds are:","choices":[{"text":"24 seconds","value":"A"},{"text":"1440 seconds","value":"B"},{"text":"86400 seconds","value":"C"},{"text":"3600 seconds","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":161524,"question":"The average time the Earth takes to make exactly one rotation about its axis is defined as:","choices":[{"text":"A solar hour","value":"A"},{"text":"A solar day","value":"B"},{"text":"A light 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