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(1) What is the day at zero degree Meridian at Greenwich after completing the table A?
Answers
Answer:
Where is the table.
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Explanation:
As I'm studying for my exams, I really can't afford to answer on quora, but couldn't resist as I'm doing geography revision.
So, here you go..
Since the earth makes one complete revolution of 360° in 24 hours, that means it passes through 15° in one hour, that also means 1° in 4 minutes.
As you must know Earth rotates from west to east, so every 15° we go eastwards local time is advanced by 1 hour.
Likewise, if you go westwards, local time is retarded by 1 hour.
So, we can conclude that places east of Greenwich gain time as they see sun earlier, whereas places west of Greenwich see the sun later and lose time.
So, if we know GMT, to find local time, we merely have to add or subtract the difference in the number of hours from given longitude.
(Longitude is angular distance which is measured in degrees along the equator east or west of Prime meridian) to cut in short,basically these are vertical lines which pass through both poles.
Now, the answer of your question;
50° towards east..
East means advanced time.
Divide 50° in 3 parts of 15° each and remaining for easy calculation as you know 15° in longitude means 1 hour.
So, it would be
15°(15×4=60min=1hr)+15°(1hr)+15°(1hr)+ 5°(5°×4=20min)= 3 hours 20 minutes. ahead
i.e 12+3hr 20min=03.20 pm
(Note: as mentioned above 1° in 4 minutes, that's why to calculate how much time in 15°, I multiplied it by 4 )
I really hope you understood it and would be capable of calculating it by yourself
If it is 12 noon at the prime meridian. What time is it at 30°E?
If the time is 12 noon at the prime meridian what time is it at 45°E?
If it is 5 pm at 120 degrees, what time is is it at the Prime Meridian?
If it is 12 noon at the prime meridian, what time is it at 30 degrees East?
When it is 12 noon at the prime meridian, what will be the local time at 74 degrees east?
Ans. 3:20 PM
Explanation —
Earth rotates 360 ° in 24 hr.
Then in 1 hr. =360°/24=15°
1 hr.=15°
Also, 1 hr. = 60 min.
》60min.=15°
1min. = 1/4°
And, 1°= 4min.
—Earth rotates east to west . Therefore time in the east of the Prime Meridian will be ahead of that west of it and Prime Meridian itself.
50° east of it!!!
We know in 1 hr. Earth rotates 15°.
Therefore it will rotate 45° in 3hr.
Remaining 5° in 20 minutes.
HENCE, time in 50° east of it will be 3:20 PM
Keeping in mind time at Prime Meridian is 12 Noon.
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Answer : 03 hr 20 min pm
Explanation: The earth rotates into 360 degrees within 1440 minutes (24×60). 50 degrees east to the prime meridian it takes {(24×60×50)÷360} minutes i.e. 200 minutes which is equal to 3 hours and 20 minutes. Since east side is ahead in time so time on 50 degrees east to prime meridian will be 03:20 pm.
(Note: The earth takes 4 minutes to pass 1 degree. Here in this case it will take 4×50=200 minutes = 3 hours and 20 minutes).
Very simple!
To cross 1 degree longitude the sun takes 4 min.
To cross 50 degree the sun takes 50 multiplied by 4 = 220 m = 3 hours 66 mins
The place is to the East of Prime Meridian ie 0 degree.
so add 3.66 hrs to the time of the Prime Meridian (ie 12 noon! )
so.. your ans is 3.66 PM
What is the time at 90° E when it is 12:00 noon at the Prime Meridian?
If it is 12 noon at the Prime Meridian what will be the time at 120 east longitude?
If it is 6pm at the prime meridian, what is the time of 75°E?
If it is Monday, 12 AM in 170° west longitude, then what is the time and day in 170° east longitude?
If it is 5.30 PM at 120 W, what is the time in the prime meridian?
One longitude covers 4mins. Places east of primemeridian are ahead and places to it's west are behind. If it is 50 degrees east then 50×4=200 minutes which is around 3hrs 20mins. So if it is noon(12:00pm) at prime mereya then it will be 3:20pm at 50° longitude.
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You cannot know a place’s time zone or what time it is somewhere based only on longitude. There are several different time zones along each longitude. You must provide place names or include latitudes.
(Hint : It’s not 3:20 PM.)
3.20 PM(12 hr system) or 15.20 hrs (24 hr system)
It's 3:20 pm at 50°E
3:20p.m
3.20 pm
If it is 12 noon at the prime meridian. What time is it at 30°E?
If the time is 12 noon at the prime meridian what time is it at 45°E?
If it is 5 pm at 120 degrees, what time is is it at the Prime Meridian?
If it is 12 noon at the prime meridian, what time is it at 30 degrees East?
When it is 12 noon at the prime meridian, what will be the local time at 74 degrees east?
What is the time at 90° E when it is 12:00 noon at the Prime Meridian?
If it is 12 noon at the Prime Meridian what will be the time at 120 east longitude?
If it is 6pm at the prime meridian, what is the time