KCET · Physics · Wave Optics
In single slit experiment, the width of the slit is reduced. Then, the linear width of the principal maxima
- A decreases but becomes less bright
- B increases but becomes less bright
- C decreases but becomes more bright
- D increases but becomes more bright
Answer & Solution
Correct Answer
(B) increases but becomes less bright
Step-by-step Solution
Detailed explanation
If width of slit is reduced in a single slit diffraction.
Width of central maxima \(\beta=\frac{2 \lambda \mathrm{D}}{\mathrm{a}}\) will increase but intensity of central maxima will decrease less number of waves will superpose at the centre.
Width of central maxima \(\beta=\frac{2 \lambda \mathrm{D}}{\mathrm{a}}\) will increase but intensity of central maxima will decrease less number of waves will superpose at the centre.
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