{"id":148206,"date":"2024-12-23T19:44:03","date_gmt":"2024-12-23T14:14:03","guid":{"rendered":"https:\/\/pwonlyias.com\/stage\/?post_type=current-affairs&#038;p=148206"},"modified":"2024-12-23T20:08:42","modified_gmt":"2024-12-23T14:38:42","slug":"speed-gun","status":"publish","type":"current-affairs","link":"https:\/\/pwonlyias.com\/stage\/current-affairs\/speed-gun","title":{"rendered":"Speed Gun"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-148160 alignright\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/237-676956579097c.webp\" alt=\"Speed Gun\" width=\"403\" height=\"346\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/237-676956579097c.webp 740w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/237-676956579097c-300x257.webp 300w\" sizes=\"(max-width: 403px) 100vw, 403px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Speed guns are being increasingly used to monitor speeding vehicles, ensuring traffic safety and enforcing speed regulations.<\/span><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>About Speed Gun<\/b><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A speed gun is a device used to measure the speed of a moving object without direct contact.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It operates by emitting <\/span><b>electromagnetic radiation<\/b><span style=\"font-weight: 400;\">, which reflects off the moving object.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The device calculates the object\u2019s speed using the<\/span><b> Doppler effect.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Speed guns were originally developed during World War II for military purposes and later adapted for civilian use.<\/span><\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span class=\"vc_button\"><a href=\"https:\/\/www.pw.live\/batches\/upsc\/pw-only-ias?utm_source=seo+upsc+batch&#038;utm_medium=seo+upsc&#038;utm_campaign=seo&#038;utm_id=upsc\" target=\"_blank\" rel=\"noopener\">Enroll now for UPSC Online Classes<\/a><\/span><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>Working Mechanism of Speed Gun<\/b><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-148161 alignright\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/238-676956564293d.webp\" alt=\"Speed Gun\" width=\"401\" height=\"176\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/238-676956564293d.webp 805w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/238-676956564293d-300x132.webp 300w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/238-676956564293d-768x337.webp 768w\" sizes=\"(max-width: 401px) 100vw, 401px\" \/><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Doppler Effect:<\/b><span style=\"font-weight: 400;\"> The principle behind speed guns relies on the Doppler effect, discovered by <\/span><b>Austrian physicist Christian Doppler.<\/b><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When an object moves towards or away from the speed gun, the frequency of the reflected waves changes.<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Approaching object<\/b><span style=\"font-weight: 400;\">: Frequency increases.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>Receding object<\/b><span style=\"font-weight: 400;\">: Frequency decreases.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The<\/span><b> difference in frequency is used to calculate the object\u2019s speed.<\/b><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-148162\" src=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/239-6769565626a5d.webp\" alt=\"Speed Gun\" width=\"404\" height=\"242\" srcset=\"https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/239-6769565626a5d.webp 903w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/239-6769565626a5d-300x180.webp 300w, https:\/\/pwonlyias.com\/stage\/wp-content\/uploads\/2024\/12\/239-6769565626a5d-768x460.webp 768w\" sizes=\"(max-width: 404px) 100vw, 404px\" \/><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>Types of speed Guns<\/b><\/span><\/h2>\n<div class=\"vc_table_green\"><\/p>\n<table style=\"width: 99.5971%;\">\n<tbody>\n<tr>\n<td style=\"text-align: center; width: 17.7711%;\"><b>Aspect<\/b><\/td>\n<td style=\"text-align: center; width: 45.2811%;\"><b>Radar Speed Guns<\/b><\/td>\n<td style=\"text-align: center; width: 36.8656%;\"><b>LIDAR Speed Guns<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Technology Used<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Use radio waves to measure speed.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Use laser light (Light Detection and Ranging).<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Accuracy<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Lower accuracy due to radio wave divergence.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Higher accuracy due to minimal beam divergence.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Targeting<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">May struggle with multiple objects due to wave spread.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Better suited for specific targeting with focused beams.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Primary Application<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Commonly used for traffic speed monitoring.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Preferred for applications requiring precise measurements.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Components<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Contains a transmitter for radio waves and a receiver for reflected waves.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Contains a laser emitter and a detector for reflected beams.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Operation<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Calculates speed using the Doppler effect based on radio wave frequency shifts.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">Calculates speed based on changes in laser light frequency.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 17.7711%;\"><b>Limitations<\/b><\/td>\n<td style=\"width: 45.2811%;\"><span style=\"font-weight: 400;\">Susceptible to interference and inaccuracies in crowded environments.<\/span><\/td>\n<td style=\"width: 36.8656%;\"><span style=\"font-weight: 400;\">More expensive and sophisticated but highly accurate.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/div>\n<p style=\"text-align: center;\"><span class=\"vc_button\"><a href=\"https:\/\/store.pw.live\/govt-entrance-exams\/upsc-books\/upsc-textbooks?utm_source=SEO&#038;utm_medium=PW+Live&#038;utm_campaign=UPSC+Textbooks\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Check Out UPSC NCERT Textbooks From PW Store<\/span><\/a><\/span><\/p>\n<h2><span style=\"font-size: 18pt;\"><b>Applications of Speed Gun<\/b><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Traffic Monitoring: <\/b><span style=\"font-weight: 400;\">Used by law enforcement to measure vehicle speeds and enforce traffic regulations.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Sports:<\/b><span style=\"font-weight: 400;\"> Used by coaches and trainers to measure the speed of balls, athletes, or vehicles in sports like cricket, baseball, and racing.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Industrial Uses:<\/b><span style=\"font-weight: 400;\"> Employed in industries requiring precise motion tracking, such as manufacturing or logistics.<\/span><\/li>\n<\/ul>\n<div class=\"vc_table_green\"><\/p>\n<table style=\"width: 99.6375%;\">\n<tbody>\n<tr>\n<td style=\"width: 111.19%; 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