Three Young’s double-slit setups have the following values of :

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

Problem

Three Young’s double-slit setups have the following values of

(\lambda,\,D,\,d)

: (A)

600\,\text{nm},\;1.0\,\text{m},\;0.30\,\text{mm}

(B)

600\,\text{nm},\;2.0\,\text{m},\;0.60\,\text{mm}

(C)

500\,\text{nm},\;1.5\,\text{m},\;0.50\,\text{mm}

Arrange the setups in ascending order of fringe width, giving a brief reason for your answer.