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

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For seeing objects at the surface of water from a submarine under water, the instrument used is A. kaleidoscope B. periscope C. spectroscope D. telescope Check Answer Complaint Here As Incorrect Question / Answer

Related Questions Which one of the following instruments is used by the submarine sailors to see the objects on the surface? A. Telescope B. Microscope C. Gyroscope D. Periscope Check Answer Complaint Here As Incorrect Question / Answer Two thin wooden sticks are floating on the surface of water closer to each other. A hot needle touches the water between them. How will the sticks react to it A. They will come closer B. They will mova apart C. They will mova critically D. They will stay as before Check Answer Complaint Here As Incorrect Question / Answer Insect are able to run on the surface of water because A. insect have less weight B. insect can swim on water C. of the Archimede's upthrust D. surface tension makes the surface behave as an elastic membrane. Check Answer Complaint Here As Incorrect Question / Answer Organisms free floating on the surface of water body are A. benthos B. nektons C. neustons D. phytoplanktons Check Answer Complaint Here As Incorrect Question / Answer In scuba diving, while ascending towards the water surface, there is a danger of bursting the lungs. It is because A. Graham's law of diffusion B. Archimede's principle C. Boyle's law D. Henry's law Check Answer Complaint Here As Incorrect Question / Answer

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