Physics A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height? 2.87 sec 3.44 sec 4.65 sec 5.41 sec 2.87 sec 3.44 sec 4.65 sec 5.41 sec ANSWER DOWNLOAD EXAMIANS APP
Physics To resolve an object in an electron microscope, None of these The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. Both A & B None of these The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics Which one is the unit of surface tension of a liquid Newton /m2 Electron volt /cm2 Joule/ mm None of these Newton /m2 Electron volt /cm2 Joule/ mm None of these ANSWER DOWNLOAD EXAMIANS APP
Physics An object which absorbs all colours and reflects none appears: Grey Black White Blue Grey Black White Blue ANSWER DOWNLOAD EXAMIANS APP
Physics Of the following natural phenomena, tell which one known in Sanskrit as 'deer's thirst'? Mirage Halo Rainbow Earthshine Mirage Halo Rainbow Earthshine ANSWER DOWNLOAD EXAMIANS APP
Physics In the Earth, the weight of a body is maximum at the Surface South Pole North Pole Equator Surface South Pole North Pole Equator ANSWER DOWNLOAD EXAMIANS APP
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