Physics Woollen cloth protects the body from cold because It is a good conductor of heat External heat rays enter into the body through the woollen cloth It is a poor conductor of heat It reflects heat It is a good conductor of heat External heat rays enter into the body through the woollen cloth It is a poor conductor of heat It reflects heat ANSWER DOWNLOAD EXAMIANS APP
Physics Which Color has the Longest Wavelength? White Yellow Red Violet White Yellow Red Violet ANSWER DOWNLOAD EXAMIANS APP
Physics A hydrogen balloon floats up because of Air pressure decreases with decrease in height Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. Air pressure decreases with decrease in height Air pressure decreases with decrease in weight The pressure inside the balloon is more than the pressure outside it Weight of the balloon is less than the weight of air displaced by it. ANSWER DOWNLOAD EXAMIANS APP
Physics Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit radio waves ultraviolet light X-rays visible light radio waves ultraviolet light X-rays visible light ANSWER DOWNLOAD EXAMIANS APP
Physics Transformer is a device to convert Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy Low voltage D.C. into high voltage D.C. Low voltage A.C. into high voltage A.C. C. to A.C. Mechanical energy into Electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse? 100 W Both 25 W Neither 100 W Both 25 W Neither ANSWER DOWNLOAD EXAMIANS APP
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