Physics What is the minimum distance (in metres) required to hear an echo? 10 17 13 21 10 17 13 21 ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is produced when Strong opposite charges in different clouds break down the resistance offered by the intervening air Water vapour produces electricity in the clouds Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities Strong opposite charges in different clouds break down the resistance offered by the intervening air Water vapour produces electricity in the clouds Similar charges of electricity rush towards each other and then get repelled Clouds strike against impurities in air and the friction burns up these impurities ANSWER DOWNLOAD EXAMIANS APP
Physics The refractive index of a transparent medium is maximum for Green light Violet light Red light Yellow light Green light Violet light Red light Yellow light ANSWER DOWNLOAD EXAMIANS APP
Physics If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be Same Half One Fourth Double Same Half One Fourth Double ANSWER DOWNLOAD EXAMIANS APP
Physics On a cold day when a room temperature is 15oC, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15oC, because plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat plastics have a higher thermal conductivity than metals metals have higher thermal capacity than plastics plastics have a lower density than metals metals are good conductor of heat ANSWER DOWNLOAD EXAMIANS APP
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