1.

DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 You can make a simple periscope by placing two mirrors in a 'Z' shaped box as shown in figure below. Periscope is advice

A. used in U-boats
B. that makes use of reflection of light
C. Both the above
D. None of these
Answer» D. None of these


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