Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has low temperature coefficient of expansion Has a very low specific heat Is a bad conductor of heat so only inner surface expands Has high temperature coefficient of expansion Has low temperature coefficient of expansion Has a very low specific heat ANSWER DOWNLOAD EXAMIANS APP
Physics When the speed of car is doubled, then what will be the braking force of the car to stop it in the same distance ? One-fourth Two times Four times Half One-fourth Two times Four times Half ANSWER DOWNLOAD EXAMIANS APP
Physics Light houses are places with powerful lights to : Guide and help large crowds at religious gathering during nights Indicate to the incoming warships, the location of a harbour during night Guide and resolve traffic jams in crowded metro-cities during nights Guide and warn the ships coming from different directions in the ocean Guide and help large crowds at religious gathering during nights Indicate to the incoming warships, the location of a harbour during night Guide and resolve traffic jams in crowded metro-cities during nights Guide and warn the ships coming from different directions in the ocean ANSWER DOWNLOAD EXAMIANS APP
Physics If there were no gravity, which of the following will not be there for a fluid? Viscosity Surface Tension Pressure Upward Thrust Viscosity Surface Tension Pressure Upward Thrust ANSWER DOWNLOAD EXAMIANS APP
Physics A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is: 150 J 50 J 100 J 75 J 150 J 50 J 100 J 75 J ANSWER DOWNLOAD EXAMIANS APP
Physics The height of a geo-stationary satellite from the Earth's surface is approximately : 42,000 km 36,000 km None of these 30,000 km 42,000 km 36,000 km None of these 30,000 km ANSWER DOWNLOAD EXAMIANS APP
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