Why light travel in a straight path

1.	Why light travel in a straight path
Answer» Light does not travel in straight path . It appears to travel in straight line . It shiws dual character :- wave and particleWhen particles are present it travels in straight line but in casr of vacuum it shows it\'s wave property and doesn\'t travel in straight line . It seems to travel in straight line only because of its speed According to Fermat\'s principal of light light always tqies the quickest path........ Between two points the quickest path is of a straight line...... So light ravels in straight line

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