Table of Contents
Which instrument is used in submarine to view object on the surface?
The instrument is known as a Periscope which allows us to see objects at the surface of water from a submarine underwater.
What is the instrument used to see objects on the surface of water?
For seeing objects at the surface of water from a submarine under water, the instrument used is periscope. It can be through or around the object that made it visible.
Which instrument is used in submarines to observe activity above the water surface while the submarine is submerged?
periscope
The third option, periscope can be defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight. Thus it is the suitable instrument for submarines to observe activity above the water surface while the submarine is submerged.
Which device is used in submarine?
A special device in the submarine which allows people to see objects above the water surfaces is known as periscope. The word periscope comes from the Greek words Peri which means “around” and Scopus, which means “look.” This optical instrument uses prisms, mirrors or lenses to reflect images through a tube.
What instrument is used to view things that are far away?
binoculars, optical instrument, usually handheld, for providing a magnified stereoscopic view of distant objects.
Which of the following musical instruments is played by Amjad Ali Khan?
sarod
Amjad Ali Khan
| Ustad Amjad Ali Khan | |
|---|---|
| Genres | Hindustani classical music |
| Instruments | sarod |
| Associated acts | Hafiz Ali Khan, Amaan Ali Khan, Ayaan Ali Khan, Gurdev Singh |
| Website | sarod.com |
Which instrument is used for viewing the sun?
helioscope
A helioscope is an instrument used in observing the sun and sunspots. The helioscope was first used by Benedetto Castelli (1578-1643) and refined by Galileo (1564–1642).
What is used in submarines?
High-strength alloyed steel is still the main material for submarines today, with 250–350 metres (820 to 1,148 feet) depth limit, which cannot be exceeded on a military submarine without sacrificing other characteristics. To exceed that limit, a few submarines were built with titanium hulls.
How do submarines dive and surface?
Submarines float on the surface by using ballast tanks full of air. There are valves at the top of the ballast tanks that are opened when it’s time for the submarine to submerge. As the air escapes, seawater comes in a the bottom of the tank. It makes the sub heavier, and then it submerges.
How are periscopes used in submarines?
Periscopes allow a submarine, when submerged at a relatively shallow depth, to search visually for nearby targets and threats on the surface of the water and in the air. When not in use, a submarine’s periscope retracts into the hull.