Physics A single fixed pulley is used to draw water from a well because Velocity ratio is low Mechanical advantage is high Force is applied in a convenient direction Efficiency is 100% Velocity ratio is low Mechanical advantage is high Force is applied in a convenient direction Efficiency is 100% ANSWER DOWNLOAD EXAMIANS APP
Physics Why does the sea appear blue in colour? Reflection of the sun light from water surface Scattering of the sunlight by water molecules Refraction of the sun light Interference of the sun light from water surface Reflection of the sun light from water surface Scattering of the sunlight by water molecules Refraction of the sun light Interference of the sun light from water surface ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following properties is found only in ferromagnetic materials ? Point in a particular direction Susceptibility independent of temperature Attracting a magnetic substance Hysteresis Point in a particular direction Susceptibility independent of temperature Attracting a magnetic substance Hysteresis ANSWER DOWNLOAD EXAMIANS APP
Physics A photostat machine works on Electrostatic image making Magnetic image making Thermal image making Electromagnetic image making Electrostatic image making Magnetic image making Thermal image making Electromagnetic image making ANSWER DOWNLOAD EXAMIANS APP
Physics An aircraft can perform aerobatic manoeuvres in a vertical loop because of Centripetal force Centrifugal force Weight Gravity Centripetal force Centrifugal force Weight Gravity ANSWER DOWNLOAD EXAMIANS APP
Physics The earth-wire of a cable is connected to Short circuitry of the appliance The outer metallic body of the appliance The fuse of the appliance The filament of the appliance Short circuitry of the appliance The outer metallic body of the appliance The fuse of the appliance The filament of the appliance ANSWER DOWNLOAD EXAMIANS APP
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