Question

9. If a pencil is held above a table and directly
below a tube light, a sharp shadow is
obtained when it is:
(a) held parallel to the tube light and far
above the table
(b) held vertically
(c) held parallel to the tube light and close
to the table
(d) held near the tube light​

Answer 1

Answer:

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Answer 2

Answer:

what is the answer please tell me