Which of the following positions of Sun, Earth and Moon is/are suitable for Spring Tide ? 1. SYZYGY Conjunction 2. SYZYGY Opposition 3. Quadrature Select the correct answer using the code given below:
- A.1 only
- B.2 only
- C.1 and 2
- D.1 and 3
Correct answer
Explanation
The correct answer is C, 1 and 2. Spring tides occur whenever the Sun, the Earth and the Moon lie in a straight line, a position called syzygy, whether the Moon is on the same side as the Sun or the opposite side.
In conjunction the Moon lies between the Earth and the Sun, which happens at new moon. In opposition the Earth lies between the Sun and the Moon, which happens at full moon. In both cases the tide-raising pull of the Sun adds to that of the Moon, so high tides are higher and low tides lower than usual. When the Sun and the Moon are at right angles to each other as seen from the Earth, called quadrature, their pulls partly cancel and neap tides occur, at the first and last quarter.
A is wrong because spring tides also occur at opposition. B is wrong because conjunction, at new moon, also produces spring tides. D is wrong because quadrature produces neap tides, not spring tides.
Exam tip: Syzygy at new and full moon gives spring tides; quadrature at the quarters gives neap tides.
Practice Questions
View allBagram Air Base is located in
- A.Turkey
- B.Pakistan
- C.Afghanistan
- D.Israel
Show answer
Bagram Air Base lies in Parwan province of Afghanistan, about 60 km north of the capital Kabul.
Read the full explanation →Which one of the following statements is not correct?
- A.Position of the Sun, Earth and Moon in a straight line of 180° angle is known as syzygy.
- B.Syzygy conjunction causes solar eclipse.
- C.Syzygy opposition causes lunar eclipse.
- D.Syzygy conjunction occurs at the time of perihelion only.
Show answer
This statement is not correct, because conjunction happens at every new moon, about once a month, and has nothing to do with the Earth's closest point to the Sun.
Read the full explanation →Which one of the following about sugar industry of Peninsular India is not correct?
- A.High yield per hectare of sugarcane
- B.Higher sucrose content
- C.Long crushing season
- D.Most of the mills in the Peninsula are located mainly along the east coast
Show answer
This statement is not correct, because the peninsular sugar mills are concentrated mainly in Maharashtra and Karnataka, in the west and the interior of the plateau.
Read the full explanation →Which of the following statements is/are correct?
1. Visakhapatnam Port is a land-locked harbour.
2. Deendayal Port is a tidal port.
Select the correct answer using the code given below.
- A.1 only
- B.2 only
- C.Both 1 and 2
- D.Neither 1 nor 2
Show answer
Both statements describe the two ports correctly. Visakhapatnam in Andhra Pradesh is India's deepest land-locked and protected port on the east coast.
Read the full explanation →Weathering, mass wasting, erosion and transportation are indicators of which one of the following processes?
- A.Denudation
- B.Endogenetic process
- C.Diastrophism
- D.Mountain building
Show answer
Weathering, mass wasting, erosion and transportation together wear down and strip away the earth's surface, and this combined work is called denudation.
Read the full explanation →