Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 30 db Above 80 db Above 120 db Above 50 db Above 30 db Above 80 db Above 120 db ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre? -12.33 diopters -4.33 diopters 4.33 diopters 12.33 diopters -12.33 diopters -4.33 diopters 4.33 diopters 12.33 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics When a bottle of perfume is opened in one corner of a room the smell spreads soon throughout the room. This is an example of Capillarity Viscosity Diffusion Surface tension Capillarity Viscosity Diffusion Surface tension ANSWER DOWNLOAD EXAMIANS APP
Physics When water freezes its density Decreases Becomes Zero Increases Remains constant Decreases Becomes Zero Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics A needle or a pin floats on the surface of water because of Surface tension Surface energy Viscosity Adhesive force Surface tension Surface energy Viscosity Adhesive force ANSWER DOWNLOAD EXAMIANS APP
Physics Superconductors are those elements Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose resistance falls almost to zero at very low temperatures Whose conductivity is intermediate between metals and insulators Which turn into insulators at very low temperatures Which conduct electricity only at super-high temperatures Whose resistance falls almost to zero at very low temperatures Whose conductivity is intermediate between metals and insulators ANSWER DOWNLOAD EXAMIANS APP
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