Question 1 of 6diffraction
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What is meant by the diffraction of waves?
Fig. 4.2 shows two wave patterns, A and B, after passing through gaps of different widths. Which pattern shows the wave fronts emerging…
Why does pattern A (Fig. 4.2) correspond to the narrower gap?
Why is diffraction of sound waves a common, noticeable phenomenon in everyday life, while diffraction of light waves is not?
State the law relating the angle of incidence i and angle of refraction r for light passing between two given media.
What is meant by the critical angle, for light travelling from a denser medium towards a less dense one?
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