Physics Waves that are required for long distance wireless communication are Ultraviolet rays Microwaves Infrared rays Radio waves Ultraviolet rays Microwaves Infrared rays Radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes? 1.0479166666667 2.0958333333333 0.21041666666667 0.12847222222222 1.0479166666667 2.0958333333333 0.21041666666667 0.12847222222222 ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following instruments is used to study dispersion of light ? Spectrometer Telescope Microscope Photometer Spectrometer Telescope Microscope Photometer ANSWER DOWNLOAD EXAMIANS APP
Physics Sound waves cannot travel in Hydrogen gas Water Glass Vacuum Hydrogen gas Water Glass Vacuum ANSWER DOWNLOAD EXAMIANS APP
Physics Optic fibres are used in : Endoscopy CAT scans X-ray photos Ultrasound scans Endoscopy CAT scans X-ray photos Ultrasound scans ANSWER DOWNLOAD EXAMIANS APP
Physics A person lifts luggage of 20 kg from the ground and puts it on his head 2m above the ground. Calculate the work done by him. (g = 10 ) 200J 400J 40J 20 J 200J 400J 40J 20 J ANSWER DOWNLOAD EXAMIANS APP
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