For seeing objects at the surface of water from a submarine under water , the instrument used is -

A Periscope
B telescope
C kaleidoscope
D spectroscope

Correct Answer: Periscope

For seeing objects at the surface of water from a submarine under water, the instrument used is periscope.
Bissoy MCQ
#সাধারণ জ্ঞান #Combined Bank (সমন্বিত ব্যাংক) #সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

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