Physics The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes? 0.21041666666667 2.0958333333333 1.0479166666667 0.12847222222222 0.21041666666667 2.0958333333333 1.0479166666667 0.12847222222222 ANSWER DOWNLOAD EXAMIANS APP
Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 80 J 2268 J 336 J 4.2 J 80 J 2268 J 336 J 4.2 J ANSWER DOWNLOAD EXAMIANS APP
Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : F (3/4)f (7/3)f (4/3)f F (3/4)f (7/3)f (4/3)f ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following device is used to measure humidity? Anemometer Hygrometer Hydrometer Psycho Meter Anemometer Hygrometer Hydrometer Psycho Meter ANSWER DOWNLOAD EXAMIANS APP
Physics Danger signals are generally red as red light Is least bright Gives comfort to eye Has lowest velocity Undergoes least deviation Is least bright Gives comfort to eye Has lowest velocity Undergoes least deviation ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? Due to surface tension Due to its shape The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight Due to surface tension Due to its shape The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight ANSWER DOWNLOAD EXAMIANS APP
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