1. The blue colour of water in the sea is due to
2. The bending of light when it passes around a corner or a slit is due to ________
3. The colour of the ocean appears to be blue because the sunlight falling on it is
4. Which of the following statements is true when we see ''rainbow' ?
5. Danger signals are generally red as red light
6. A thin oil film on a water surface appears coloured because of
7. The blue colour of sky is due to
8. The phenomenon of light associated with the appearance of blue colour of the sky is
9. The sky appears blue because of
10. Light scattering takes place in
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