Physics In SONAR which kind of wave is used? Infrasonic Radio Ultrasonic Audible sound Infrasonic Radio Ultrasonic Audible sound ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirrors are used as a rear view mirror in motor cycles because It forms erect (upright) image It forms real image It forms smaller image as compared with object All of these It forms erect (upright) image It forms real image It forms smaller image as compared with object All of these ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Nichrome Platinum Copper Pure silicon Nichrome Platinum Copper Pure silicon ANSWER DOWNLOAD EXAMIANS APP
Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 40 4000 2000 80 40 4000 2000 80 ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole Decreases Increases No change First increases and than decreases Decreases Increases No change First increases and than decreases ANSWER DOWNLOAD EXAMIANS APP
Physics A small drop of oil spreads over water because : Oil has a higher viscosity Water has a higher viscosity Water has a higher surface tension Oil has a higher surface tension Oil has a higher viscosity Water has a higher viscosity Water has a higher surface tension Oil has a higher surface tension ANSWER DOWNLOAD EXAMIANS APP
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