. In the curve (Fig.12.1) half the wavelength is
In the curve (Fig.12.1) half the wavelength is
(a) A B (b) B D
(c) D E (d) A E
Best Answer
(b)
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In the curve (Fig.12.1) half the wavelength is
(a) A B (b) B D
(c) D E (d) A E
(b)