|A. When the moon, sun and earth are in a straight line||1. Spring Tide|
|B. When the earth, sun and moon are at right angles||2. Neap Tide|
|C. When the moon is at its farthest from the earth||3. Perigean Tide|
|D. When the moon is at its nearest position to earth||4. Apogean Tide|
A) A\[\to \]1, B\[\to \]2, C\[\to \]4, D\[\to \]3
B) A\[\to \]1, B\[\to \]2, C\[\to \]3, D\[\to \]4
C) A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3
D) A\[\to \]2, B\[\to \]1, C\[\to \]3, D\[\to \]4
Correct Answer: A
Solution :[a] A When the moon is nearest to the earth in its orbit at perigee), its tide-producing power is greater than average, resulting in Perigean tides. These are 15-20 percent greater than average. When the moon is farthest from the earth (in apogee), the tides are called apogean tides, which are about 15-20 percent less than average. Coincidence of spring and Perigean tides results in an abnormally great tidal range, while when neap and apogean tides coincide the range is abnormally small.
You need to login to perform this action.
You will be redirected in 3 sec