Spring tides refer to
greatest difference in the sea level at high and low tides
lowest difference in the sea level at high and low tides
no difference in the sea level at high and low tides
counteraction of gravitational pull of the Sun to that of Moon
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This question was previously asked in
UPSC NDA-1 – 2019
Spring tides are tidal events that occur twice each lunar month, around the times of the new moon and full moon. During these phases, the Sun, Earth, and Moon are aligned. The combined gravitational pull of the Sun and Moon on Earth’s oceans is strongest, resulting in higher high tides and lower low tides than average. The difference between high and low tide sea levels (tidal range) is therefore maximized during spring tides. Neap tides, conversely, occur when the Sun and Moon are at right angles relative to Earth (during the first and third quarter moon phases), resulting in smaller tidal ranges.