Physics If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths? LUV < lVIS < lIR LUV > lVIS > lIR LUV < lIR < lVIS LUV > lIR > lVIS LUV < lVIS < lIR LUV > lVIS > lIR LUV < lIR < lVIS LUV > lIR > lVIS ANSWER DOWNLOAD EXAMIANS APP
Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor Should be made of a good conductor like copper with sharp-pointed edges Can be of any shape Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod Should be made of a good conductor like copper with sharp-pointed edges Can be of any shape Should be made of a good conductor but can be of any shape Should be in the form of a vertical rod ANSWER DOWNLOAD EXAMIANS APP
Physics The wall of a dam is broader at the base To withstand pressure that is increased with atmospheric pressure To withstand pressure that increases with depth Because streamlining is required To withstand pressure that increases in a horizontal plane To withstand pressure that is increased with atmospheric pressure To withstand pressure that increases with depth Because streamlining is required To withstand pressure that increases in a horizontal plane ANSWER DOWNLOAD EXAMIANS APP
Physics The recoiling of gun is an example of which of the following? Law of Conservation of Linear Momentum Conversion of Kinetic Energy to Potential Energy Law of Conservation of Angular Momentum Law of Conservation of Energy Law of Conservation of Linear Momentum Conversion of Kinetic Energy to Potential Energy Law of Conservation of Angular Momentum Law of Conservation of Energy ANSWER DOWNLOAD EXAMIANS APP
Physics The blue colour of sky is due to Scattering of longer wavelengths of sunlight in the atmosphere Reflection of sunlight Scattering of shorter wavelengths of sunlight in the atmosphere Refraction of sunlight Scattering of longer wavelengths of sunlight in the atmosphere Reflection of sunlight Scattering of shorter wavelengths of sunlight in the atmosphere Refraction of sunlight ANSWER DOWNLOAD EXAMIANS APP
Physics Energy per unit volume is dimensionally equal to Density Force Pressure Work Density Force Pressure Work ANSWER DOWNLOAD EXAMIANS APP
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