Question

What is Negative propagation Give example

Answer 1

vegetative reproduction is any form of is asexual reproduction occurring in plants in which new plants grows from a fragment of the parent plant or grows from a specialised reproductive structure .
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Answer 2

Answer:

For some phase differences between TE and TM waves the components of the Poynting vector vary in sign. We call this situation "negative propagation," because locally the beam may behave like a wave propagating in the direction opposite to the conventional one.

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