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 Should be made of a good conductor but can be of any shape 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 Should be made of a good conductor but can be of any shape Can be of any shape Should be in the form of a vertical rod ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is the unit of Astronomical Distance ? Sec Metre/sec Parsec Para/sec Sec Metre/sec Parsec Para/sec ANSWER DOWNLOAD EXAMIANS APP
Physics Which physicists is the writer of the book 'A Brief History of Time'? Hans Bethe Isaac Newton Albert Einstein Stephen Hawking Hans Bethe Isaac Newton Albert Einstein Stephen Hawking ANSWER DOWNLOAD EXAMIANS APP
Physics A copper disc has a hole. If the disc is heated, the size of the hole Increases No change Decreases First increases and than decreases Increases No change Decreases First increases and than decreases ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Depends upon the metal Decreases Increases Unchanged Depends upon the metal Decreases Increases Unchanged ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a part of a CRT ? Shadow mask Phosphor screen Gas plasma Electron gun Shadow mask Phosphor screen Gas plasma Electron gun ANSWER DOWNLOAD EXAMIANS APP
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