General Knowledge - Basic General Knowledge - Discussion

Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 57)
57.
For seeing objects at the surface of water from a submarine under water, the instrument used is
kaleidoscope
periscope
spectroscope
telescope
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 2 of 2.

Nikita gupta said:   1 decade ago
What is use of kaleidoscope and spectroscope?

Amali said:   6 years ago
What is kaleidoscope and sprectoscope?
(1)

Bhanu said:   5 years ago
Good information, thanks all.
(1)

ANEESH A said:   1 decade ago
Periscope and kaleidoscope.
(1)

Amali said:   6 years ago
What is periscope?
(1)

Bilal said:   1 decade ago
Thank you Mr Amar


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