- 1(current)
Q. No.Consider sunlight incident on a pinhole of width \(10^{3}~\mathring{{A}}\). The image of the pinhole seen on a screen shall be:
| (a) | a sharp white ring |
| (b) | different from a geometrical image |
| (c) | a diffused central spot, white in colour |
| (d) | diffused coloured region around a sharp central white spot |
Choose the correct option:
1. (a), (c)
2. (a), (d)
3. (b), (d)
4. (b), (c)
Subtopic: Â Diffraction |
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Consider sunlight incident on a slit of width \(10^{4}~\mathring{A}.\) The image seen through the slit shall:
| 1. | be a fine sharp slit white in colour at the centre |
| 2. | a bright slit white at the centre diffusing to zero intensities at the edges |
| 3. | a bright slit white at the centre diffusing to regions of different colours |
| 4. | only be a diffused slit white in colour |
Subtopic: Â Diffraction |
From NCERT
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Consider the diffraction pattern for a small pinhole. As the size of the hole is increased:
| (a) | the size decreases | (b) | the intensity increases |
| (c) | the size increases | (d) | the intensity decreases |
| 1. | (a), (b) | 2. | (a), (c) |
| 3. | (b), (d) | 4. | (c), (d) |
Subtopic: Â Diffraction |
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From NCERT
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Hints
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NEET 2025 - Target Batch
- 1(current)
Q. No.
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