Physics Ultrasound devices operate with minimum frequency from 35 kHz 45 kHz 20kHz 60 kHz 35 kHz 45 kHz 20kHz 60 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics Every hot object emits ________ X–rays Visible light Infrared rays Ultraviolet rays X–rays Visible light Infrared rays Ultraviolet rays ANSWER DOWNLOAD EXAMIANS APP
Physics Electricity is transmitted over long distances It is fast It is cheaper It is safer There is less wastage of energy It is fast It is cheaper It is safer There is less wastage of energy ANSWER DOWNLOAD EXAMIANS APP
Physics The radiant energy having lowest energy is Visible light Gamma rays UV rays Microwave radiation Visible light Gamma rays UV rays Microwave radiation ANSWER DOWNLOAD EXAMIANS APP
Physics In a Carnot engine when heat is taken from the source, its temperature Decreases Remains constant Increases Decreases and then remains constant Decreases Remains constant Increases Decreases and then remains constant ANSWER DOWNLOAD EXAMIANS APP
Physics Two rods, one of copper and other of steel, experience the same upthrust when placed in water.Thus, both have Equal mass Equal volume Equal density Equal weight Equal mass Equal volume Equal density Equal weight ANSWER DOWNLOAD EXAMIANS APP
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