Answer the Questions in short:
1) Two bottles of cold drink, one orange flavored and another lemon flavored are
lying on a table in sunlight. Can you identify them by only seeing the colour of
their shadows? Explain.
2) Which shadow will be bigger, when an object lies near the source of light or away
from the source of light?
3) Which property of light accounts for the formation of shadows?
4) State two differences between a partial solar eclipse and a total solar eclipse.
5) Draw a labelled diagram of a parallel, divergent and a convergent beam.
The End!
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2. If the source of light is closer to the object, a larger shadow is formed than when the source of light is far from the object. If the angle of incident light is smaller, the shadow is longer. On the other hand, if the angle of incident light is bigger, the shadow is smaller.
3. Whenever light(and waves in general) reach an obstacle, they bounce off. Shadows appear simply because, the light that was falling on that area or spot is being shielded. We see shadows because, there is more light in the surroundings that than there is light at the shadow area.
4. In a total solar eclipse, the sun is completely blocked from view for a few minutes during the maximum phase of the eclipse. Total solar eclipses are seen only from a small region on the earth. A partial solar eclipse happens when the sun, moon and the earth are not in a straight line.
Explanation:
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