Physics Optical Fibre technology works on which of these principles of Physics? Total internal reflection of Light Bernoulli's Principle Newton's law of Motion Photoelectric effect Total internal reflection of Light Bernoulli's Principle Newton's law of Motion Photoelectric effect ANSWER DOWNLOAD EXAMIANS APP
Physics Intensity of gravitational field of earth is maximum at Surface Equator Poles Centre of earth Surface Equator Poles Centre of earth ANSWER DOWNLOAD EXAMIANS APP
Physics Why two thin shirts can keep us warmer than a single thick shirt in winter ? Air layer between two shirts works as good conductor Air layer between two shirts behaves like insulating media Two thin shirts become thicker so prevent transmission of heat No radiation of heat takes place Air layer between two shirts works as good conductor Air layer between two shirts behaves like insulating media Two thin shirts become thicker so prevent transmission of heat No radiation of heat takes place ANSWER DOWNLOAD EXAMIANS APP
Physics When water freezes its density Decreases Remains constant Becomes Zero Increases Decreases Remains constant Becomes Zero Increases ANSWER DOWNLOAD EXAMIANS APP
Physics Night photography and photopraphy in mist and fog are possible using Microwave radiation Ultra-violet radiation Gamma radiation Infra-red radiation Microwave radiation Ultra-violet radiation Gamma radiation Infra-red radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 30 db Above 50 db Above 120 db Above 80 db Above 30 db Above 50 db Above 120 db Above 80 db ANSWER DOWNLOAD EXAMIANS APP
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