Physics Global warming is expected to result in Change in coast line Increase in level of sea All of these Change in crop pattern Change in coast line Increase in level of sea All of these Change in crop pattern 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 behaves like insulating media Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor No radiation of heat takes place Air layer between two shirts behaves like insulating media Two thin shirts become thicker so prevent transmission of heat Air layer between two shirts works as good conductor No radiation of heat takes place ANSWER DOWNLOAD EXAMIANS APP
Physics Sun's heat reaches us by Convection Radiation Reflection Conduction Convection Radiation Reflection Conduction ANSWER DOWNLOAD EXAMIANS APP
Physics When a ring of metal is heated what happens to its hole ? Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion Contracts It expands or contracts according to its diameter Expands It expands or contracts according to its coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics The earth is a Good absorber and good radiator of heat Non-absorber of heat Bad absorber and bad radiator of heat Good reflector of heat Good absorber and good radiator of heat Non-absorber of heat Bad absorber and bad radiator of heat Good reflector of heat ANSWER DOWNLOAD EXAMIANS APP
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