GATE XE · 2019 · XE-H
Question 21: Ocean Sciences
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Question 21
XE-HNAT2 marksNeeds review
A tsunami is a long gravity wave, i.e. its wavelength is much larger than the depth of the ocean. A tsunami moves from point A to point B (see figure below); water depth at A is 2000 m, and water depth at B is 500 m. Assume no frictional losses. By energy conservation,
is constant, where
is group speed and
is the total (potential plus kinetic) energy density of the wave field. If the amplitude of the tsunami at point A is 1 m, its amplitude at B is ________ m. (Round off to two decimal places.) 
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2019XE-H
GATE XE 2019 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-H
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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