Physics The commonly used coolant in refrigerators is Nitrogen Oxygen Freon Ammonia Nitrogen Oxygen Freon Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics The shape of our milky way galaxy is Spiral None of these Elliptical Circular Spiral None of these Elliptical Circular ANSWER DOWNLOAD EXAMIANS APP
Physics A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be : (3/4)f F (7/3)f (4/3)f (3/4)f F (7/3)f (4/3)f ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics In severe winter, in cold countries water pipes burst because Combined effect of all the above three High atmospheric pressure Water expands on freezing Contraction of water pipes Combined effect of all the above three High atmospheric pressure Water expands on freezing Contraction of water pipes ANSWER DOWNLOAD EXAMIANS APP
Physics A boat will submerge when it displaces water equal to its own: Density Surface area Volume Weight Density Surface area Volume Weight ANSWER DOWNLOAD EXAMIANS APP