Physics Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection I and III II and III I and II I, II and III I and III II and III I and II I, II and III ANSWER DOWNLOAD EXAMIANS APP
Physics Which electromagnetic radiation is used for satellite communication ? Infrared Ultraviolet Millimeter wave Radiowave Infrared Ultraviolet Millimeter wave Radiowave ANSWER DOWNLOAD EXAMIANS APP
Physics For a ray of light to suffer total internal reflection it has to pass from : Glass to water Air to glass Water to glass Air to water Glass to water Air to glass Water to glass Air to water ANSWER DOWNLOAD EXAMIANS APP
Physics Quality of a musical note depends on Fundamental frequency Amplitude of the wave Velocity of sound in the medium Harmonics present Fundamental frequency Amplitude of the wave Velocity of sound in the medium Harmonics present ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following cannot be used for making lenses? Glass Soil Plastic Water Glass Soil Plastic Water ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to roll a barrel full of coal tar than to pull it because the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled the rolling friction is much less than the sliding friction the full weight of the barrel comes into play when it is pulled more surface area of the barrel is in contact with the road when it is pulled coal tar is a liquid and it flows in the barrel when it is rolled ANSWER DOWNLOAD EXAMIANS APP
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