Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Exosphere Ionosphere Mesosphere Stratosphere Exosphere Ionosphere Mesosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics In radio-communication, the signals emitted by transmitting antenna are reflected on Troposphere Ozonosphere Ionosphere Stratosphere Troposphere Ozonosphere Ionosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are pieces of Steel Nickel Soft iron Cobalt Steel Nickel Soft iron Cobalt ANSWER DOWNLOAD EXAMIANS APP
Physics The phenomenon of light associated with the appearance of blue colour of the sky is Scattering Refraction Reflection Interference Scattering Refraction Reflection Interference ANSWER DOWNLOAD EXAMIANS APP
Physics In a ________ the wave particles of the medium vibrate in a direction perpendicular to the direction of wave propagation Rolling Transverse Longitudinal Field Rolling Transverse Longitudinal Field ANSWER DOWNLOAD EXAMIANS APP
Physics Resistance of human body in dry condition 10000 ohm 1000 ohm 10 ohm 100000 ohm 10000 ohm 1000 ohm 10 ohm 100000 ohm ANSWER DOWNLOAD EXAMIANS APP