Physics The characteristic invalid for heat radiation is that it travels : Heating the medium through which it passes In a straight line In all directions With the speed of light Heating the medium through which it passes In a straight line In all directions With the speed of light ANSWER DOWNLOAD EXAMIANS APP
Physics Speed of light is maximum in ________ Vacuum Gases Solids Liquids Vacuum Gases Solids Liquids ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves cannot travel in Glass Hydrogen gas Water Vacuum Glass Hydrogen gas Water Vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following are used for accurately measuring very small time intervals ? White dwarfs Pulsars Atomic clocks Quartz clocks White dwarfs Pulsars Atomic clocks Quartz clocks ANSWER DOWNLOAD EXAMIANS APP
Physics The sky appears blue because of Reflection on sea water Atmospheric water vapour Scattering of light Emision of blue wavelength by the sun Reflection on sea water Atmospheric water vapour Scattering of light Emision of blue wavelength by the sun 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 R/5 4 R/5 5 R/4 5 R R/5 4 R/5 5 R/4 ANSWER DOWNLOAD EXAMIANS APP
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