Physics What is the minimum distance (in metres) required to hear an echo? 21 10 13 17 21 10 13 17 ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Mesosphere Stratosphere Ionosphere Exosphere Mesosphere Stratosphere Ionosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Sound is heard over longer distances on rainy days because Moist air does not absorb sound Sound travels slowly in moist air Sound travels faster in moist air Moist air absorbs sound Moist air does not absorb sound Sound travels slowly in moist air Sound travels faster in moist air Moist air absorbs sound ANSWER DOWNLOAD EXAMIANS APP
Physics The blue colour of sky is due to Scattering of shorter wavelengths of sunlight in the atmosphere Scattering of longer wavelengths of sunlight in the atmosphere Reflection of sunlight Refraction of sunlight Scattering of shorter wavelengths of sunlight in the atmosphere Scattering of longer wavelengths of sunlight in the atmosphere Reflection of sunlight Refraction of sunlight ANSWER DOWNLOAD EXAMIANS APP
Physics Which is the point from where an azimuth originates? West East South North West East South North ANSWER DOWNLOAD EXAMIANS APP
Physics The theory of relativity is presented by which scientist Albert Einstein Stephen Hawking Isaac Newton Marie Curie Albert Einstein Stephen Hawking Isaac Newton Marie Curie ANSWER DOWNLOAD EXAMIANS APP
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