Physics Optical fibres are based on the phenomenon of Interference Total Internal Reflection Dispersion Diffraction Interference Total Internal Reflection Dispersion Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Depends upon the metal Increases Decreases Unchanged Depends upon the metal Increases Decreases Unchanged ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Less than weight of the wood More than weight of the wood Zero Equal to the weight of the wood Less than weight of the wood More than weight of the wood Zero Equal to the weight of the wood ANSWER DOWNLOAD EXAMIANS APP
Physics When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is due to the phenomenon of : Diffusion Vaporisation Evaporation Sublimation Diffusion Vaporisation Evaporation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Physics Pressure Cooker cooks faster because The material of the cooker is a good conductor It cooks the food at low pressure Higher temperature is attained for cooking Boiling point decreases with rise of pressure The material of the cooker is a good conductor It cooks the food at low pressure Higher temperature is attained for cooking Boiling point decreases with rise of pressure ANSWER DOWNLOAD EXAMIANS APP
Physics Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. 1, 2, 3 and 4 1, 2 and 3 only 3 and 4 only 4 only 1, 2, 3 and 4 1, 2 and 3 only 3 and 4 only 4 only ANSWER DOWNLOAD EXAMIANS APP
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