Physics Water has maximum density at 4°C 100°C 0°C 273°C 4°C 100°C 0°C 273°C ANSWER DOWNLOAD EXAMIANS APP
Physics Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted. Rough black Rough white Shining black Shining white Rough black Rough white Shining black Shining white ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the second largest source of global energy? Renewable Energy None of these Nuclear Energy Fossil fuel Renewable Energy None of these Nuclear Energy Fossil fuel 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 4 R/5 R/5 5 R 5 R/4 4 R/5 R/5 5 R 5 R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics In an optical fibre the signal is transmitted In a curved path In a straight line path Due to total internal reflection Due to refraction In a curved path In a straight line path Due to total internal reflection Due to refraction ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following supports particle nature of photons ? Photoelectric effect Polarization Diffraction Interference Photoelectric effect Polarization Diffraction Interference ANSWER DOWNLOAD EXAMIANS APP
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