In which of the following media can non-mechanical waves travel?
A
In vacuum as well as in a medium
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B
In vacuum but not in a medium
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C
In a medium but not in a vacuum
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D
Neither in a medium nor in vacuum
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Solution
The correct option is A In vacuum as well as in a medium Non mechanical waves are waves that do not require a medium for transfer of their energy to occur electromagnetic waves are the only type of non mechanical waves.
Non mechanical waves can travel both in vacuum or in any medium