1.

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.

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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