{"id":89427,"date":"2025-06-01T10:04:23","date_gmt":"2025-06-01T10:04:23","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89427"},"modified":"2025-06-01T10:04:23","modified_gmt":"2025-06-01T10:04:23","slug":"tsunami-causes-devastation-near-the-coast-of-the-sea-as-the-speed-of-t","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/tsunami-causes-devastation-near-the-coast-of-the-sea-as-the-speed-of-t\/","title":{"rendered":"Tsunami causes devastation near the coast of the sea as the speed of t"},"content":{"rendered":"

Tsunami causes devastation near the coast of the sea as the speed of the sonic waves generated at the epicentre is<\/p>\n

[amp_mcq option1=”directly proportional to the depth of the sea” option2=”inversely proportional to the depth of the sea” option3=”directly proportional to the distance between the coast and epicentre” option4=”inversely proportional to the distance between the coast and epicentre” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2011<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is A) directly proportional to the depth of the sea.
\n<\/section>\n
\nThe speed of a tsunami wave (a shallow-water wave in terms of wavelength relative to depth) is determined by the formula v = sqrt(g * d), where ‘v’ is speed, ‘g’ is the acceleration due to gravity, and ‘d’ is the depth of the water. This formula shows that the wave speed is directly proportional to the square root of the depth. Therefore, in deeper water, tsunamis travel faster, and as they approach the shallower coast, they slow down.
\n<\/section>\n
\nAlthough the relationship is precisely proportional to the square root of the depth, among the given options, “directly proportional to the depth of the sea” is the correct representation that speed increases with depth. In the open ocean, where the depth is great, tsunamis can travel at hundreds of kilometers per hour. Near the coast, the decrease in depth causes the wave to decelerate significantly, leading to the stacking up of energy and a dramatic increase in wave height as it breaks upon the shore.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Tsunami causes devastation near the coast of the sea as the speed of the sonic waves generated at the epicentre is [amp_mcq option1=”directly proportional to the depth of the sea” option2=”inversely proportional to the depth of the sea” option3=”directly proportional to the distance between the coast and epicentre” option4=”inversely proportional to the distance between the … <\/p>\n

Detailed SolutionTsunami causes devastation near the coast of the sea as the speed of t<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1085],"tags":[1465,1217,1106],"class_list":["post-89427","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1465","tag-the-earthquake","tag-world-and-physical-geography","no-featured-image-padding"],"yoast_head":"\nTsunami causes devastation near the coast of the sea as the speed of t<\/title>\n<meta name=\"description\" content=\"The correct option is A) directly proportional to the depth of the sea. The speed of a tsunami wave (a shallow-water wave in terms of wavelength relative to depth) is determined by the formula v = sqrt(g * d), where 'v' is speed, 'g' is the acceleration due to gravity, and 'd' is the depth of the water. This formula shows that the wave speed is directly proportional to the square root of the depth. Therefore, in deeper water, tsunamis travel faster, and as they approach the shallower coast, they slow down.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/tsunami-causes-devastation-near-the-coast-of-the-sea-as-the-speed-of-t\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tsunami causes devastation near the coast of the sea as the speed of t\" \/>\n<meta property=\"og:description\" content=\"The correct option is A) directly proportional to the depth of the sea. The speed of a tsunami wave (a shallow-water wave in terms of wavelength relative to depth) is determined by the formula v = sqrt(g * d), where 'v' is speed, 'g' is the acceleration due to gravity, and 'd' is the depth of the water. This formula shows that the wave speed is directly proportional to the square root of the depth. Therefore, in deeper water, tsunamis travel faster, and as they approach the shallower coast, they slow down.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/tsunami-causes-devastation-near-the-coast-of-the-sea-as-the-speed-of-t\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:04:23+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Tsunami causes devastation near the coast of the sea as the speed of t","description":"The correct option is A) directly proportional to the depth of the sea. 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The speed of a tsunami wave (a shallow-water wave in terms of wavelength relative to depth) is determined by the formula v = sqrt(g * d), where 'v' is speed, 'g' is the acceleration due to gravity, and 'd' is the depth of the water. This formula shows that the wave speed is directly proportional to the square root of the depth. 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The speed of a tsunami wave (a shallow-water wave in terms of wavelength relative to depth) is determined by the formula v = sqrt(g * d), where 'v' is speed, 'g' is the acceleration due to gravity, and 'd' is the depth of the water. This formula shows that the wave speed is directly proportional to the square root of the depth. 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