ANSWER IN ONE WORD:-
Which part of the ship disappear last over the horizon of the sea ??
Answers
Answer:
If you stand between the two rails of a straight railway track and look along the track, it will appear as if the two parallel tracks are converging as you look farther and farther away until it disappears at a certain point. You will not see the rails actually touch each other - they just disappear at a certain point. Our perception of detail depends not only on the smallest features in a subject, but also on the distance at which these features are observed. Human vision is therefore typically described in terms of .
Being able to resolve lines in characters that are separated by one sixtieth of a degree (an “arc minute”) is the goal when testing eyesight. A simple refractor with only a 75mm objective would have a maximum resolving power of about 2 arc seconds as compared to 3600 arc seconds for the naked eye. Put another way, the angular diameter or the apparent size of a Rupee coin placed two kilometers away is roughly 2 arc seconds - and will not be visible to the naked eye - but can be seen using a telescope.
Therefore, if you look at the railway track with a telescope, the vanishing point of the converging rails will be a lot farther than as seen without the optical aid. Similarly, A ship on the horizon which you cannot see with the naked eye is visible with the aid of a telescope, and eventually disappear over the horizon. Your question appears to state that the ship does not disappear at all when seen through a telescope!
I do not know if you have actually experienced this phenomena or you have only heard or read about it, but there is no reason why the ship’s image should suddenly be inverted as it goes over the horizon! If the eyepiece does not produce an upright image, then the ship will always appear upside-down.
Another point is, due to the effect of refraction by the air in the atmosphere, some part of the ship will still be visible even though the entire ship has actually moved beyond the line of sight due to the curvature of the Earth. This effect is easily observable when the sun in setting.
Answer:
the upper deck
Explanation:
hope it helps