Physics When a steel ball is placed on the surface of mercury, it does not sink because The density of mercury is greater than that of steel Of the high viscosity of mercury Of the surface tension of mercury Mercury is a semisolid The density of mercury is greater than that of steel Of the high viscosity of mercury Of the surface tension of mercury Mercury is a semisolid ANSWER DOWNLOAD EXAMIANS APP
Physics In which one of the following the phenomenon of total internal reflection of light is used ? Working of binoculars Twinkling of stars Formation of mirage Formation of rainbow Working of binoculars Twinkling of stars Formation of mirage Formation of rainbow ANSWER DOWNLOAD EXAMIANS APP
Physics Energy is continuously created in the sun due to: Nuclear fission Artificial radioactivity Nuclear fusion Radioactivity Nuclear fission Artificial radioactivity Nuclear fusion Radioactivity ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is responsible for the working of Newton's colour disc experiment ? Formation of impure spectra Principle of complementary colour Persistence of vision Formation of pure spectra Formation of impure spectra Principle of complementary colour Persistence of vision Formation of pure spectra ANSWER DOWNLOAD EXAMIANS APP
Physics Acceptable noise level for human ear = 85 db > 85 db < 85 db None of these = 85 db > 85 db < 85 db None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Sun's heat reaches us by Convection Radiation Conduction Reflection Convection Radiation Conduction Reflection ANSWER DOWNLOAD EXAMIANS APP
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