Physics For a ray of light to suffer total internal reflection it has to pass from : Air to glass Water to glass Air to water Glass to water Air to glass Water to glass Air to water Glass to water ANSWER DOWNLOAD EXAMIANS APP
Physics In an optical fibre the signal is transmitted In a straight line path In a curved path Due to refraction Due to total internal reflection In a straight line path In a curved path Due to refraction Due to total internal reflection ANSWER DOWNLOAD EXAMIANS APP
Physics For an object, the state of rest is considered to be the state of ________ speed. Zero Decrease Inverse Increasing Zero Decrease Inverse Increasing ANSWER DOWNLOAD EXAMIANS APP
Physics A bomb explodes on the moon. You will hear its sound on earth after ________ 3.7 hours 20 minutes 2 hours 20 minutes You cannot hear the sound of explosion 3.7 hours 20 minutes 2 hours 20 minutes You cannot hear the sound of explosion ANSWER DOWNLOAD EXAMIANS APP
Physics The layer of atmosphere used for radio-wave transmission is Stratosphere Ionosphere Troposphere Chromosphere Stratosphere Ionosphere Troposphere Chromosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the fastest communication channel? Microwave Optical fiber Radio wave All are operating at nearly the same propagation speed Microwave Optical fiber Radio wave All are operating at nearly the same propagation speed ANSWER DOWNLOAD EXAMIANS APP
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