Three separate double-slit experiments are conducted using the parameters below

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

Three separate double-slit experiments are conducted using the parameters below. Experiment A:

\lambda = 500\,\text{nm}

d = 0.25\,\text{mm}

L = 1.0\,\text{m}

Experiment B:

\lambda = 650\,\text{nm}

d = 0.25\,\text{mm}

L = 0.50\,\text{m}

Experiment C:

\lambda = 500\,\text{nm}

d = 0.50\,\text{mm}

L = 1.0\,\text{m}

Rank the experiments from largest to smallest spacing between adjacent bright fringes on the screen. Justify your ranking briefly.