Physics It is more difficult to walk on a sandy road than on a concrete road because the friction between sand and feet is more than that between concrete and feet. the friction between sand and feet is less than that between concrete and feet. the sand is grainy but concrete is smooth. sand is soft and concreter is hard. the friction between sand and feet is more than that between concrete and feet. the friction between sand and feet is less than that between concrete and feet. the sand is grainy but concrete is smooth. sand is soft and concreter is hard. ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water Due to its shape Due to surface tension It will remain under the water, when it will displace more water than its weight The density of needle is less than that of water ANSWER DOWNLOAD EXAMIANS APP
Physics The metal used to make lightning conductors is Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Physics The SI unit of luminous emittance is : Lux Lumen Lumen second Candela Lux Lumen Lumen second Candela ANSWER DOWNLOAD EXAMIANS APP
Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor Should be in the form of a vertical rod Should be made of a good conductor but can be of any shape Can be of any shape Should be made of a good conductor like copper with sharp-pointed edges Should be in the form of a vertical rod Should be made of a good conductor but can be of any shape Can be of any shape Should be made of a good conductor like copper with sharp-pointed edges ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is arranged in order of decreasing conductivity? Copper, Aluminium, Steel, Silver Aluminium, Silver, Copper, Steel Copper, Silver, Aluminium, Steel Silver, Copper, Aluminium, Steel Copper, Aluminium, Steel, Silver Aluminium, Silver, Copper, Steel Copper, Silver, Aluminium, Steel Silver, Copper, Aluminium, Steel ANSWER DOWNLOAD EXAMIANS APP
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