Physics It is easy to burst a gas-filled balloon with a needle than with a nail. It is because Nail is more longer than needle. Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. Nail is more longer than needle. Nail exerts more pressure than needle on the balloon. Gas is reactive with the needle. Needle exerts more pressure than nail on the balloon. ANSWER DOWNLOAD EXAMIANS APP
Physics Railway tracks are banked on curves so that Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train Necessary centripetal force may be obtained from the horizontal component of the weight of the train No frictional force may be produced between the tracks and the wheels of the train The train may not fall down inwards Necessary centrifugal force may be obtained from the horizontal component of the weight of the train ANSWER DOWNLOAD EXAMIANS APP
Physics If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be Same Double Half One Fourth Same Double Half One Fourth ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Photoelectric Effect Edison Effect Johnson Effect Piezo - electric Effect Photoelectric Effect Edison Effect Johnson Effect Piezo - electric Effect ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is due to ionisation of water deposits absorption of sunlight in minute water droplets refraction and reflection of sunlight by water droplets diffusion of sunlight through water droplets ionisation of water deposits absorption of sunlight in minute water droplets refraction and reflection of sunlight by water droplets diffusion of sunlight through water droplets ANSWER DOWNLOAD EXAMIANS APP
Physics On a clean glass plate a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because: mercury is a metal. cohesion of mercury is greater than its adhesion with glass. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. mercury is a metal. cohesion of mercury is greater than its adhesion with glass. density of mercury is greater than that of water. cohesion of water is greater than its adhesion with glass. ANSWER DOWNLOAD EXAMIANS APP
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