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 ) 400J 200J 20 J 40J 400J 200J 20 J 40J ANSWER DOWNLOAD EXAMIANS APP
Physics The Laser is a beam of radiations which are Coherent and monochromatic Non-coherent and monochromatic Coherent and non-monochromatic Non-coherent and non-monochromatic Coherent and monochromatic Non-coherent and monochromatic Coherent and non-monochromatic Non-coherent and non-monochromatic ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following wavelengths of light is most effective in photosynthesis ? Blue Orange Yellow Green Blue Orange Yellow Green ANSWER DOWNLOAD EXAMIANS APP
Physics When a stone is thrown in the calm water of a pond the waves produced on the surface of water in the pond are Both longitudinal and transverse Waves are not produced Longitudinal Transverse Both longitudinal and transverse Waves are not produced Longitudinal Transverse ANSWER DOWNLOAD EXAMIANS APP
Physics In SONAR which kind of wave is used? Ultrasonic Radio Audible sound Infrasonic Ultrasonic Radio Audible sound Infrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics When light passes from one medium to another, this phenomenon of change in its direction is called ________ Propagation No option is correct Diffraction Refraction Propagation No option is correct Diffraction Refraction ANSWER DOWNLOAD EXAMIANS APP
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