Question
What is the difference between image and shadow?
| Image | Shadow |
| $1.$ Image is formed due to reflection or refraction of light | $1.$ Shadow is formed when light falls on the opaque body. |
| $2.$ Image is seen when light coming from the object after reflection or refraction enters the observes’s eye. | $2.$ No light enters the eye from the shadow of the object. |
| $3.$ Image gives more information such as colour, structure, etc., about the object | $3.$ Shadow does not provide any detail about the object, it gives an idea about the shape of the object. |
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S.No.
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Column $A$
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S.No.
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Column $B$
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$(a)$
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Handpicking
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$(i)$
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Conversion of water vapours into liquids.
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$(b)$
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Threshing
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$(ii)$
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Separating bran from flour.
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$(c)$
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Winnowing
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$(iii)$
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Separating larger size impurities.
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$(d)$
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Sieving
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$(iv)$
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Separating butter from milk.
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$(e)$
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Sedimentation
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$(v)$
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Conversion of water into Us vapours.
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$(f)$
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Evaporation
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$(vi)$
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Separating grains from its stalks.
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$(g)$
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Condensation
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$(vii)$
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Settling of heavier components at bottom.
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$(h)$
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Churning
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$(viii)$
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Separation by wind or by blowing air.
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| $COLUMN\ I$ | $COLUMN\ II$ | ||
| $(a)$ | Magnet attracts | $(i)$ | resis along a particular direction |
| $(b)$ | Magnet can be repelled | $(ii)$ | iron |
| $(c)$ | Magnet if suspended freely | $(iii)$ | by another magnet |
| $(d)$ | Poles of the magnet can be identified by | $(iv)$ | iron filing |

| Name of the material | Appearance (Hard/ Soft) | Transparency (Transparent/ Transucent/ Opaque) | Floats/ Sinks in water | Soluble/ Insouble in water |
| - | - | - | - | - |