Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 15 cm 5 cm 10 cm 20 cm 15 cm 5 cm 10 cm 20 cm ANSWER DOWNLOAD EXAMIANS APP
Physics The refractive index of a transparent medium is maximum for Green light Yellow light Red light Violet light Green light Yellow light Red light Violet light ANSWER DOWNLOAD EXAMIANS APP
Physics Tungsten is used for the manufacture of the filament of an electric bulb, because It is a good conductor It is malleable It is economical It has a very high melting point It is a good conductor It is malleable It is economical It has a very high melting point ANSWER DOWNLOAD EXAMIANS APP
Physics The source of the Sun's energy is the process of Photoelectric emission Thermionic emission Nuclear fusion Nuclear fission Photoelectric emission Thermionic emission Nuclear fusion Nuclear fission ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier for a man to swim in sea water, than in river water because The density of sea water is more than the density of river water The sea is wider than the river The sea is-deeper than the river The density of sea water is lesser than the density of river water The density of sea water is more than the density of river water The sea is wider than the river The sea is-deeper than the river The density of sea water is lesser than the density of river water ANSWER DOWNLOAD EXAMIANS APP
Physics We feel cool when we sit near the fan, this is because Fan cools surrounding air. Fan gives cool air. We feel cool when air touches the body. Air vapourises the sweat on our body. Fan cools surrounding air. Fan gives cool air. We feel cool when air touches the body. Air vapourises the sweat on our body. ANSWER DOWNLOAD EXAMIANS APP
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