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 Should be made of a good conductor like copper with sharp-pointed edges Can be of any shape Should be in the form of a vertical rod Should be made of a good conductor but can be of any shape Should be made of a good conductor like copper with sharp-pointed edges Can be of any shape ANSWER DOWNLOAD EXAMIANS APP
Physics It is more difficult to walk on ice than on a concrete road because There is very little friction between the ice and feet pressing it Ice is soft when compared to concrete There is more friction between the ice and feer None of these There is very little friction between the ice and feet pressing it Ice is soft when compared to concrete There is more friction between the ice and feer None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Nuclear sizes are expressed in a unit named Angstrom Fermi Tesla Newton Angstrom Fermi Tesla Newton ANSWER DOWNLOAD EXAMIANS APP
Physics Planets do not twinkle because Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity They are very far away from the earth resulting in decrease in intensity of light Their distance from the earth does not change with time They are nearer to earth and hence we receive a greater amount of light. They emit light of a constant intensity They are very far away from the earth resulting in decrease in intensity of light ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The doped silicon piece will become p-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become n-type The doped silicon piece will become p-type ANSWER DOWNLOAD EXAMIANS APP
Physics The sparkling of a diamond is due to Refraction of light Total internal reflection of light Interference of light Polarisation of light Refraction of light Total internal reflection of light Interference of light Polarisation of light ANSWER DOWNLOAD EXAMIANS APP
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