{"id":21692,"date":"2024-04-15T06:09:42","date_gmt":"2024-04-15T06:09:42","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=21692"},"modified":"2024-04-15T06:09:42","modified_gmt":"2024-04-15T06:09:42","slug":"the-dark-lines-in-the-solar-spectrum-are-due-to-a-absorption-of-corresponding-wavelengths-by-the-outer-layers-of-the-sun-b-destructive-interference-between-waves-of-certain-definite-wavelengths-c","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-dark-lines-in-the-solar-spectrum-are-due-to-a-absorption-of-corresponding-wavelengths-by-the-outer-layers-of-the-sun-b-destructive-interference-between-waves-of-certain-definite-wavelengths-c\/","title":{"rendered":"The dark lines in the solar spectrum are due to A. Absorption of corresponding wavelengths by the outer layers of the sun. B. Destructive interference between waves of certain definite wavelengths. C. Absorption of corresponding wavelengths by the prism used in the photograph. D. Absence of corresponding wavelengths from the light emitted by the core of the sun."},"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_6a9928a936e5b\">\r\n                                            <div class=\"option\" data-option-key=\"option1\" data-is-correct=\"true\">\r\n                    Absorption of corresponding wavelengths by the outer layers of the sun.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option2\" data-is-correct=\"false\">\r\n                    Destructive interference between waves of certain definite wavelengths.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option3\" data-is-correct=\"false\">\r\n                    Absorption of corresponding wavelengths by the prism used in the photograph.                <\/div>\r\n                                            <div class=\"option\" data-option-key=\"option4\" data-is-correct=\"false\">\r\n                    Absence of corresponding wavelengths from the light emitted by the core of the sun.                <\/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 A. Absorption of corresponding wavelengths by the outer layers of the sun.<\/p>\n<p>The dark lines in the solar spectrum are called Fraunhofer lines, and they are caused by the absorption of certain wavelengths of light by the gases in the sun&#8217;s atmosphere. The different elements in the sun&#8217;s atmosphere absorb different wavelengths of light, so the Fraunhofer lines are a unique fingerprint of the sun&#8217;s composition.<\/p>\n<p>Option B is incorrect because destructive interference 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> not a factor in the formation of Fraunhofer lines. Option C is incorrect because the prism used in the photograph does not absorb any wavelengths of light. Option D is incorrect because the light emitted by the core of the sun does contain all wavelengths of light, but the outer layers of the sun absorb some of these wavelengths.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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":[692],"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>The dark lines in the solar spectrum are due to A. Absorption of corresponding wavelengths by the outer layers of the sun. B. Destructive interference between waves of certain definite wavelengths. C. Absorption of corresponding wavelengths by the prism used in the photograph. 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