Show Why Shadows Shadow Form FormA A shadow Is formed when rays of ot light are obstructed bv hy an opaque body Rays of light radiate In straight lines In all directions As a man approaches approaches approaches ap ap- ap- ap a street lamp the light shines shine on his face and therefore his body casts a n shadow behind In passing the lamp the shadow naturally moves with the man so that when he lie Is Ie In front of the lamp the ra rays s 's of ot light strike his back and therefore cause the shadow to fall taU before him |