Physics

Problem

Using Young's double slit experiment, a monochromatic light of wavelength

5000 \text{ \AA}

produces fringes of fringe width

0.5 \text{ mm}

. If another monochromatic light of wavelength

6000 \text{ \AA}

is used and the separation between the slits is doubled, then the new fringe width will be: [Main June 29, 2022 (I)] (a)

0.5 \text{ mm}

(b)

1.0 \text{ mm}

(c)

0.6 \text{ mm}

(d)

0.3 \text{ mm}