201 Biomass can be converted into fuels by____________________? Physics Medium Full question → A direct combustion B fermentation C both A and B D none of these
202 ________________ cells converts solar energy into electrical energy? Physics Medium Full question → A rotory B photovoltaic C galvanic D non of these
203 Geothermal energy is a _______________________ source of energy? Physics Medium Full question → A non-renewable B stable C renewable D none of the above
204 Propulsion force of a rocket is____________________? Physics Medium Full question → A non-conservative force B conservative force C both A and B D none of these
205 The area under the force displacement graph represents__________________? Physics Medium Full question → A area B work done C power D none of these
206 A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ? Physics Medium Full question → A man does more work than child B child does more work than man C both do the same amount of work D it is a foolish question
207 When two protons are brought together_____________________? Physics Medium Full question → A Kinetic energy increases B P.E. between them increases C P.E. between them decreases D P.E. between tem does not change
208 The relation between the escape velocity V esc and orbital speed Vo is given by________________? Physics Medium Full question → A V esc = 1/2Vo B V esc = -2 Vo C V esc = Vo D V esc = 2Vo
209 Work has the dimension as that of same as that of__________________? Physics Medium Full question → A torque B angular momentum C linear momentum D power
210 One mega watt hour is equal to_________________? Physics Medium Full question → A 36 x 106 J B 36 x 1012 J C 36 x 109 J D 36 x 108 J
211 When the speed of a moving body is doubled then___________________? Physics Medium Full question → A its K.E is doubled B its acceleration is doubled C its P.E is doubled D its momentum is doubled
212 Gravitational P.E of a body has____________________? Physics Medium Full question → A no formula B a formula mgh only C a formula D no general formula
213 The highest value of escape velocity in solar system is planet____________________? Physics Medium Full question → A Earth B Neptune C Jupiter D Moon
214 The tides raise the mater in the see roughly in a day___________________? Physics Medium Full question → A once B twice C four time D eight time
215 Work done on the body equals to the _____________________? Physics Medium Full question → A change in its K.E always B change in its P.E always C change in its K.E and change in its P.E D neither change in K.E and nor change in its P.E
216 Slope of work time graph is equal to____________________? Physics Medium Full question → A displacement B acceleration C power D energy
217 The relation between horse power and watt is_________________? Physics Medium Full question → A 1 hp = 546 watts B 1 hp = 746 watts C 1 hp = 1000 watts D 1 hp = 946 watts
218 Which of the following types of force can do no work on the particle on which it acts ? Physics Medium Full question → A frictional force B gravitational force C elastic force D centripetal force
219 A field in which the work done in a moving a body along closed path is zero is called________________? Physics Medium Full question → A electric field B conservative field C electromagnetic field D gravitational field
220 Work done will be maximum if the angle between the force F and displacement d is______________________? Physics Medium Full question → A 45° B 90° C 180° D 0°