Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 80 db Above 120 db Above 30 db Above 50 db Above 80 db Above 120 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
Physics Remote-sensing device has an inbuilt source of G-ray Infrared ray Ultraviolet ray X-ray G-ray Infrared ray Ultraviolet ray X-ray ANSWER DOWNLOAD EXAMIANS APP
Physics A decibel is The wavelength of noise A musical instrument A measure of sound level A musical note The wavelength of noise A musical instrument A measure of sound level A musical note ANSWER DOWNLOAD EXAMIANS APP
Physics What is the principle of a ''Life Jacket"? It provides oxygen to a drowning person The person can sit on it like a raft It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat It provides oxygen to a drowning person The person can sit on it like a raft It increases the volume of the person to keep him afloat It decreases the volume of the person to keep him afloat ANSWER DOWNLOAD EXAMIANS APP
Physics Full form of CFL used in place of electric bulbs is Closed filament lamp Closed fluorescent lamp Compact fluorescent lamp Constantan filament lamp Closed filament lamp Closed fluorescent lamp Compact fluorescent lamp Constantan filament lamp ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of measurement of noise is Decibel Amplifier Acoustics Hertz Decibel Amplifier Acoustics Hertz ANSWER DOWNLOAD EXAMIANS APP
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