Question

calculate the time at the following longitude assuming the greenwich mean time as 10am

a. 90digree west
b. 120digree east
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Answer 1

Answer:

Explanation:the longitudinal difference between in the west is 90°

We know that 1°=4mins

90°=90*4=360mins

1min =1/60hrs

360mins=360/60=6hrs

As it is going towards west the time will be deducted from the GMT.

So,

10-6=4hrs

So at 90°W longitude the time will be 4am.

2. At 120°E longitude

1°=4min

120°=120*4=480mins

480/60=8hrs

As it is towards the east of the Prime meridian the time will be added to the GMT.

So, 10+8=18hrs

It will be 6pm at 120°E longitude when it is 10am at 0° longitude.

Answer 2

Answer:

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