A plane wave of wavelength $$6250$$ $$A0$$ is incident normally on a slit of width $$2$$×$$10$$−$$2$$ cm . The width of the principal maximum on a screen distant $$50$$ cm will be

Question

A  plane wave of wavelength $$6250$$ $$A0$$      is incident normally  on a slit of width $$2$$×$$10$$−$$2$$ cm     . The width of the principal maximum on a screen distant $$50$$ cm     will be

Infinity Learn · Accepted Answer

Wavelength   λ$$=6250$$ $$A0=6250$$×$$10$$−$$10$$ m         Slit width      $$a=2$$×$$10$$−$$2$$ $$cm=2$$×$$10$$−$$4$$ m       Distance of the screen  $$D=50$$ $$cm=0.5$$ m     Width  of central $$maximum=2$$λ$$Da=2$$×$$6250$$×$$10$$−$$10$$×$$0.52$$×$$10$$−$$4$$                                                  $$=312.5$$×$$10$$−$$3$$ cm.

A plane wave of wavelength $6250 A^{0}$ is incident normally on a slit of width $2 \times 10^{- 2} c m$ . The width of the principal maximum on a screen distant $50 c m$ will be

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A plane wave of wavelength 6250 A0 is incident normally on a slit of width 2×10−2 cm . The width of the principal maximum on a screen distant 50 cm will be

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A plane wave of wavelength $6250 A^{0}$ is incident normally on a slit of width $2 \times 10^{- 2} c m$ . The width of the principal maximum on a screen distant $50 c m$ will be