यदि |vecA+vecB|=|vecA-vecB| हो तो सदिशों...

यदि `|vecA+vecB|=|vecA-vecB|` हो तो सदिशों `vecA` तथा `vecB` के बीच कोण होगा:

A

`30^(@)`

B

`90^(@)`

C

`120^(@)`

D

`60^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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