{"id":1875,"date":"2024-03-05T15:24:28","date_gmt":"2024-03-05T15:24:28","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=1875"},"modified":"2024-03-05T15:24:28","modified_gmt":"2024-03-05T15:24:28","slug":"light-travels-at-a-maximum-speed-in","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/light-travels-at-a-maximum-speed-in\/","title":{"rendered":"Light travels at a maximum speed in :"},"content":{"rendered":"<p>\r\n    <!-- Check if it's an AMP page -->\r\n            <!-- Non-AMP version -->\r\n        <div class=\"mcq-container\" data-quiz-id=\"quizState_6a97ddc615629\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"false\">\r\n                    Air                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Water                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"true\">\r\n                    Vacuum                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    None of these                 <\/div>\r\n                            \r\n            <!-- Feedback messages for non-AMP -->\r\n            <div class=\"feedback\" data-feedback=\"wrong\">Answer is Right!<\/div>\r\n            <div class=\"feedback\" data-feedback=\"right\">Answer is Wrong!<\/div>\r\n        <\/div>\r\n\r\n        <script>\r\n        document.addEventListener('DOMContentLoaded', function () {\r\n            var containers = document.querySelectorAll('.mcq-container');\r\n\r\n            containers.forEach(function(container) {\r\n                var options = container.querySelectorAll('.option');\r\n                var feedbackSelect = container.querySelector('[data-feedback=\"select\"]');\r\n                var feedbackWrong = container.querySelector('[data-feedback=\"wrong\"]');\r\n                var feedbackRight = container.querySelector('[data-feedback=\"right\"]');\r\n\r\n                options.forEach(function(option) {\r\n                    option.addEventListener('click', function() {\r\n                        var selectedOption = option.getAttribute('data-option-key');\r\n                        var isCorrect = option.getAttribute('data-is-correct') === 'true';\r\n\r\n                        \/\/ Remove previous selections\r\n                        options.forEach(function(opt) {\r\n                            opt.classList.remove('correct', 'incorrect');\r\n                        });\r\n\r\n                        \/\/ Add the correct\/incorrect class\r\n                        if (isCorrect) {\r\n                            option.classList.add('correct');\r\n                            feedbackRight.hidden = false;\r\n                            feedbackWrong.hidden = true;\r\n                        } else {\r\n                            option.classList.add('incorrect');\r\n                            feedbackRight.hidden = true;\r\n                            feedbackWrong.hidden = false;\r\n                        }\r\n\r\n                        \/\/ Hide select feedback\r\n                        feedbackSelect.hidden = true;\r\n                    });\r\n                });\r\n            });\r\n        });\r\n        <\/script>\r\n    \r\n    <!--more--><\/p>\n<p>The correct answer is (c), vacuum. Light travels at a maximum speed of 299,792,458 meters per second in a vacuum. This is <div class=\"youtube-subscribe-container\">\r\n        <a href=\"https:\/\/www.youtube.com\/channel\/UCNHT8lW-JmLC68rjBfZhdkg?sub_confirmation=1\" target=\"_blank\" class=\"youtube-subscribe-button\">\r\n            <span class=\"youtube-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 576 512\">\r\n     <div class=\"telegram-channel-container\">\r\n        <a href=\"https:\/\/t.me\/pscnotes2025\" target=\"_blank\" class=\"telegram-channel-button\">\r\n            <span class=\"telegram-icon\">\r\n                <svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 496 512\">\r\n                    <path fill=\"white\" d=\"M248,8C111,8,0,119,0,256s111,248,248,248s248-111,248-248S385,8,248,8z M362,177L320,367c-3,14-10,18-20,14l-56-41l-27,26 c-3,3-5,5-10,5l4-63L323,196c5-5-1-7-8-3l-98,62l-42-13c-9-3-10-9,2-14l162-63C351,160,365,164,362,177z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Join Our Telegram Channel\r\n        <\/a>\r\n    <\/div>                <path d=\"M549.7 124.1c-6.3-23.7-24.8-42.3-48.3-48.6C458.8 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z\"\/>\r\n                <\/svg>\r\n            <\/span>\r\n            Subscribe on YouTube\r\n        <\/a>\r\n    <\/div> the speed of light in a vacuum, and it is the fastest speed at which information can travel through the universe.<\/p>\n<p>Light travels slower in air and water than it does in a vacuum. This is because light interacts with the atoms and molecules in air and water, which slows it down. The amount of slowing depends on the density of the medium. Air is less dense than water, so light travels slower in air than it does in water.<\/p>\n<p>(a) Air is a gas, and light travels slower in gases than it does in solids or liquids. This is because the molecules in a gas are further apart than the molecules in a solid or liquid. The further apart the molecules are, the more time it takes for light to travel between them.<\/p>\n<p>(b) Water is a liquid, and light travels slower in liquids than it does in solids. This is because the molecules in a liquid are closer together than the molecules in a solid. The closer together the molecules are, the more time it takes for light to travel between them.<\/p>\n<p>(d) None of these is the correct answer. Light travels at a maximum speed in a vacuum.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Join Our Telegram Channel Subscribe on YouTube<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Light travels at a maximum speed in :<\/title>\n<meta name=\"description\" content=\"Light travels slower in air and water than it does in a vacuum. This is because light interacts with the atoms and molecules in air and water, which slows it down. The amount of slowing depends on the density of the medium. Air is less dense than water, so light travels slower in air than it does in water.\" \/>\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\/light-travels-at-a-maximum-speed-in\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Light travels at a maximum speed in :\" \/>\n<meta property=\"og:description\" content=\"Light travels slower in air and water than it does in a vacuum. This is because light interacts with the atoms and molecules in air and water, which slows it down. The amount of slowing depends on the density of the medium. 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The amount of slowing depends on the density of the medium. Air is less dense than water, so light travels slower in air than it does in water.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/light-travels-at-a-maximum-speed-in\/","og_locale":"en_US","og_type":"article","og_title":"Light travels at a maximum speed in :","og_description":"Light travels slower in air and water than it does in a vacuum. This is because light interacts with the atoms and molecules in air and water, which slows it down. The amount of slowing depends on the density of the medium. Air is less dense than water, so light travels slower in air than it does in water.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/light-travels-at-a-maximum-speed-in\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-03-05T15:24:28+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/light-travels-at-a-maximum-speed-in\/","url":"https:\/\/exam.pscnotes.com\/mcq\/light-travels-at-a-maximum-speed-in\/","name":"Light travels at a maximum speed in :","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2024-03-05T15:24:28+00:00","dateModified":"2024-03-05T15:24:28+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Light travels slower in air and water than it does in a vacuum. This is because light interacts with the atoms and molecules in air and water, which slows it down. The amount of slowing depends on the density of the medium. 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