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Give reasons.(a) The sun, the earth and the moon must be in a straight line for an eclipse to occur.(b) The penumbra is faint.(c) An aeroplane or a bird does not cast a shadow upon the earth.(d) We get an upside down image in a pinhole camera. |
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Answer» Give reasons. (a) The sun, the earth and the moon must be in a straight line for an eclipse to occur. (b) The penumbra is faint. (c) An aeroplane or a bird does not cast a shadow upon the earth. (d) We get an upside down image in a pinhole camera. |
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