Waves Tides Currents - Geography Ebooks | TheGeoecologist

Question 1

What are the three main types of movements of ocean water covered in NCERT Class 11 Chapter 14?

Accepted Answer

The three main types are waves (surface disturbances caused by wind/seismic activity), tides (periodic sea-level changes from lunar/solar gravity), and ocean currents (large-scale directional flows driven by wind, density differences, and Coriolis effect).

Question 2

How do spring tides and neap tides differ in their formation and tidal range?

Accepted Answer

Spring tides occur during New Moon and Full Moon (syzygy) when Sun, Moon, and Earth align, producing maximum tidal range. Neap tides occur during quarter moons (quadrature) when solar and lunar gravitational forces counteract, producing minimum tidal range.

Question 3

Which Indian coastal regions have the highest tidal energy potential and why?

Accepted Answer

The Gulf of Khambhat (11m range) and Gulf of Kutch (8m range) in Gujarat have India's highest tidal energy potential due to their funnel-shaped geography amplifying tidal ranges, with estimated combined potential of 12,455 MW per MNRE.

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Movements of Ocean Water: Complete NCERT Class 11 Geography Guide