Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Nail is more longer than needle. Needle exerts more pressure than nail on the balloon. Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Nail is more longer than needle. Needle exerts more pressure than nail on the balloon. ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? It expands or contracts according to its coefficient of expansion Expands It expands or contracts according to its diameter Contracts It expands or contracts according to its coefficient of expansion Expands It expands or contracts according to its diameter Contracts ANSWER DOWNLOAD EXAMIANS APP
Physics Supercooling is cooling of liquid ________ Below melting point Above melting point Below freezing point At melting point Below melting point Above melting point Below freezing point At melting point ANSWER DOWNLOAD EXAMIANS APP
Physics What is the name of the device used to convert alternating current into direct current ? Galvanometer Transformer Rectifier Ammeter Galvanometer Transformer Rectifier Ammeter ANSWER DOWNLOAD EXAMIANS APP
Physics A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will Decrease First decrease and then increase Increase Remains the same Decrease First decrease and then increase Increase Remains the same ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature which has the same reading on both Fahrenheit and Celsius scales is –40° 32° 0° 40° –40° 32° 0° 40° ANSWER DOWNLOAD EXAMIANS APP
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