Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor 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 Should be in the form of a vertical rod ANSWER DOWNLOAD EXAMIANS APP
Physics What is the reason for twinkling of stars ? Dispersion of light Atmospheric refraction Total internal reflection Atmospheric reflection Dispersion of light Atmospheric refraction Total internal reflection Atmospheric reflection ANSWER DOWNLOAD EXAMIANS APP
Physics An egg sinks in soft water but floats in a concentrated solution of salt because Albumin dissolves in salt solution and egg becomes lighter The density of salt solution exceeds the density of eggs Water has high surface tension Egg absorbs salt from the solution and expands Albumin dissolves in salt solution and egg becomes lighter The density of salt solution exceeds the density of eggs Water has high surface tension Egg absorbs salt from the solution and expands ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It is a good conductor of heat It reflects heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It is a good conductor of heat It reflects heat ANSWER DOWNLOAD EXAMIANS APP
Physics A ball is thrown vertically upward from the ground. It crosses a point at the height of 25 m twice at an interval of 4 seconds. The ball was thrown with the velocity of 30 m/s 25 m/s 18 m/s 36 m/s 30 m/s 25 m/s 18 m/s 36 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics A rear-view mirror for driving is Inverted Convex Plain Concave Inverted Convex Plain Concave ANSWER DOWNLOAD EXAMIANS APP
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