Physics Lakes freeze in cold countries in winter, leaving the water underneath at 4°C 0°C 4°F 0°F 4°C 0°C 4°F 0°F ANSWER DOWNLOAD EXAMIANS APP
Physics Tungsten is used for the manufacture of the filament of an electric bulb, because It is a good conductor It is economical It is malleable It has a very high melting point It is a good conductor It is economical It is malleable It has a very high melting point ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R/4 4 R/5 R/5 5 R 5 R/4 4 R/5 R/5 5 R ANSWER DOWNLOAD EXAMIANS APP
Physics Intensity of gravitational field of earth is maximum at Poles Centre of earth Surface Equator Poles Centre of earth Surface Equator ANSWER DOWNLOAD EXAMIANS APP
Physics What type of heat transfer is boiling water? Radiation Convection Conduction None of these Radiation Convection Conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following is credited for the discovery of ''Expanding Universe"? Niels Bohr Edwin Hubble S Chandra Shekhar V Raman Niels Bohr Edwin Hubble S Chandra Shekhar V Raman ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS