Physics A periscope works by the principle of Refraction Reflection Total internal reflection Diffraction Refraction Reflection Total internal reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics Man perceives sound vibrations in the frequency ranges of 11 – 20 Hz 0 – 5 Hz 20 – 20000 Hz 6 – 10 Hz 11 – 20 Hz 0 – 5 Hz 20 – 20000 Hz 6 – 10 Hz ANSWER DOWNLOAD EXAMIANS APP
Physics Dioptre is the unit of Light intensity Power of a lens Sound intensity Focal length of a lens Light intensity Power of a lens Sound intensity Focal length of a lens ANSWER DOWNLOAD EXAMIANS APP
Physics The light rays used for eliminating bacteria Ultra-violet radiation Microwave radiation X-rays Infrared rays Ultra-violet radiation Microwave radiation X-rays Infrared rays ANSWER DOWNLOAD EXAMIANS APP
Physics Indicate the false statement about the resistance of a wire It depends on material of wire It is directly proportional to the area of cross-section of wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature It depends on material of wire It is directly proportional to the area of cross-section of wire It is directly proportional to the length of wire Resistance of metallic wire increases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Physics An instrument that records earthquakes is Ergograph Seismograph Thermograph Ediograph Ergograph Seismograph Thermograph Ediograph ANSWER DOWNLOAD EXAMIANS APP
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