Physics Two metallic wires made from copper have same length but the radius of wire 1 is half of that of wire 2. The resistance of wire 1 is R. If both the wires are joined together in series, the total resistance becomes 5R/4 3R/4 2R R/2 5R/4 3R/4 2R R/2 ANSWER DOWNLOAD EXAMIANS APP
Physics Instrument for measuring blueness of the sky or ocean is called ________ Ceraunograph Cyanometer Bathymeter Barometer Ceraunograph Cyanometer Bathymeter Barometer ANSWER DOWNLOAD EXAMIANS APP
Physics If the diameter of a capillary is doubled, then the rise of water in it will be No change Half Two times Four times No change Half Two times Four times ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning heats the surrounding air to 300000 deg Cent 3000 deg Cent 30000 deg Cent 300 deg Cent 300000 deg Cent 3000 deg Cent 30000 deg Cent 300 deg Cent ANSWER DOWNLOAD EXAMIANS APP
Physics A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to Inertia of motion Outward pull on him Change in acceleration Change in momentum Inertia of motion Outward pull on him Change in acceleration Change in momentum ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the metals has the maximum thermal conductivity? Silver Iron Aluminium Copper Silver Iron Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP