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1) The length of the shadow is longest in the
2)
object forms a dark shadow.
3) The reflection of an object in a mirror form a /a
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Shadows are longest in the early morning and late afternoon/early evening when the sun appears low in the sky.
A dark shadow is formed when an object blocks the light source. To form a dark shadow object should be opaque or translucent. Tree is opaque object and it can block the light from passing through it.
The image formed by a plane mirror is always virtual (meaning that the light rays do not actually come from the image), upright, and of the same shape and size as the object it is reflecting. A virtual image is a copy of an object formed at the location from which the light rays appear to come.
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