Physics Why does a cannon recoil after firing ? Newton's first law of motion Backward thrust of gases produced Newton's third law of motion Conservation of energy Newton's first law of motion Backward thrust of gases produced Newton's third law of motion Conservation of energy ANSWER DOWNLOAD EXAMIANS APP
Physics Instruments for measuring Solar Radiation? Pyranometer Anemometer Dynamometer Ammeter Pyranometer Anemometer Dynamometer Ammeter ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in weight Air pressure decreases with decrease in height ANSWER DOWNLOAD EXAMIANS APP
Physics An object which absorbs all colours and reflects none appears: Grey Blue Black White Grey Blue Black White ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Demagnetization due to heating Self-demagnetization Effect of other magnets Earth's magnetic field Demagnetization due to heating Self-demagnetization Effect of other magnets Earth's magnetic field ANSWER DOWNLOAD EXAMIANS APP
Physics A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan Increases Remains the same Decreases First increases and then decreases Increases Remains the same Decreases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
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