Two slits in Young’s experiment have widths in the ratio of \(1:25\). The ratio of intensity at the maxima and minima in the interference pattern \(\frac{I_{max}}{I_{min}}\) is:
1. \(\frac{9}{4}\)
2. \(\frac{121}{49}\)
3. \(\frac{49}{121}\)
4. \(\frac{4}{9}\)

Subtopic:  Young's Double Slit Experiment |
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From NCERT
NEET - 2015
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In a double-slit experiment, the two slits are \(1~\text{mm}\) apart and the screen is placed \(1~\text{m}\) away. Monochromatic light of wavelength \(500~\text{nm}\) is used. What will be the width of each slit for obtaining ten maxima of double-slit within the central maxima of a single-slit pattern?
1. \(0.2~\text{mm}\)
2. \(0.1~\text{mm}\)
3. \(0.5~\text{mm}\)
4. \(0.02~\text{mm}\)
Subtopic:  Young's Double Slit Experiment |
 52%
From NCERT
NEET - 2015
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In Young's double-slit experiment, the intensity of light at a point on the screen where the path difference is \(\lambda\) is \(K\), (\(\lambda\) being the wavelength of light used). The intensity at a point where the path difference is \(\frac{\lambda}{4}\) will be:
1. \(K\)
2. \(\frac{K}{4}\)
3. \(\frac{K}{2}\)
4. zero

Subtopic:  Young's Double Slit Experiment |
 64%
From NCERT
AIPMT - 2014
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In Young’s double slit experiment, the slits are \(2~\text{mm}\) apart and are illuminated by photons of two wavelengths \(\lambda_1 = 12000~\mathring{A}\) and \(\lambda_2 = 10000~\mathring{A}\). At what minimum distance from the common central bright fringe on the screen, \(2~\text{m}\) from the slit, will a bright fringe from one interference pattern coincide with a bright fringe from the other?
1. \(6~\text{mm}\)
2. \(4~\text{mm}\)
3. \(3~\text{mm}\)
4. \(8~\text{mm}\)

Subtopic:  Young's Double Slit Experiment |
 67%
From NCERT
AIPMT - 2013
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In Young's-double slit experiment, the distance between the slits and the screen is doubled. The separation between the slits is reduced to half. As a result the fringe width:
1. is halved
2. become four times
3. remains unchanged
4. is doubled
Subtopic:  Young's Double Slit Experiment |
 79%
From NCERT
NEET - 2013
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