Physics Which of the following is the fastest communication channel? All are operating at nearly the same propagation speed Microwave Radio wave Optical fiber All are operating at nearly the same propagation speed Microwave Radio wave Optical fiber ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The velocity of electron is smaller than that of visible light The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The velocity of electron is smaller than that of visible light The electrons have more energy than the light particles ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of reaction produces the most harmful radiation ? Fission reaction Chemical reaction Fusion reaction Photo-Chemical reaction Fission reaction Chemical reaction Fusion reaction Photo-Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Physics Rate of change of momentum is Force Pressure Velocity Area Force Pressure Velocity Area ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection I, II and III I and II II and III I and III I, II and III I and II II and III I and III ANSWER DOWNLOAD EXAMIANS APP
Physics The angle in which a cricket ball should be hit to travel maximum horizontal distance is : 15° with horizontal 30° with horizontal 60° with horizontal 45° with horizontal 15° with horizontal 30° with horizontal 60° with horizontal 45° with horizontal ANSWER DOWNLOAD EXAMIANS APP
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