Physics Sound becomes hazardous noise pollution at decibels? Above 120 db Above 80 db Above 50 db Above 30 db Above 120 db Above 80 db Above 50 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
Physics A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance Varies with the increase of depth of the immersion of the iron piece Will increase Will decrease Does not change Varies with the increase of depth of the immersion of the iron piece Will increase Will decrease Does not change ANSWER DOWNLOAD EXAMIANS APP
Physics The metal used to make lightning conductors is Aluminium Zinc Copper Iron Aluminium Zinc Copper Iron ANSWER DOWNLOAD EXAMIANS APP
Physics Why does'nt the hydrogen atom emit X-rays? Its energy levels are very close to each other It is very small in size It has only one electron It is highly electropositive Its energy levels are very close to each other It is very small in size It has only one electron It is highly electropositive ANSWER DOWNLOAD EXAMIANS APP
Physics Shaving mirror is Concave Parabolic Plane Convex Concave Parabolic Plane Convex ANSWER DOWNLOAD EXAMIANS APP
Physics One can distinguish a telescope from a microscope by observing Length Size of the lens Length and size of the lens Colour Length Size of the lens Length and size of the lens Colour ANSWER DOWNLOAD EXAMIANS APP
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