Physics The cover of a solar cooker is made of glass because It rediates heat better than metals It absorbs sun's rays It retains the heat inside by the green house effect It reflects sun's rays It rediates heat better than metals It absorbs sun's rays It retains the heat inside by the green house effect It reflects sun's rays ANSWER DOWNLOAD EXAMIANS APP
Physics Suppose voltage V is applied across a resistance R. The power dissipated in the resistance is P. Now the same voltage V is applied across a parallel combination of three equal resistors each of resistance R. Then the power dissipated in the second case will be P P/3 3P 2p/ 3 P P/3 3P 2p/ 3 ANSWER DOWNLOAD EXAMIANS APP
Physics During uniform motion of an object along a straight line, its ________ remains constant with time. Acceleration Deceleration Force Velocity Acceleration Deceleration Force Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of ultrasound wave is typically Above 20,000 kHz Above 20 kHz Below 20 kHz Below 02 kHz Above 20,000 kHz Above 20 kHz Below 20 kHz Below 02 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will Fall Remain the same First rise and then fall Rise Fall Remain the same First rise and then fall Rise ANSWER DOWNLOAD EXAMIANS APP
Physics Good conductor of electricity is Kerosene Graphite Dry air Paper Kerosene Graphite Dry air Paper ANSWER DOWNLOAD EXAMIANS APP
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