{"id":7306,"date":"2024-04-15T02:42:46","date_gmt":"2024-04-15T02:42:46","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=7306"},"modified":"2024-04-15T02:42:46","modified_gmt":"2024-04-15T02:42:46","slug":"a-piece-of-wood-having-weight-5-kg-floats-in-water-with-60-of-its-volume-under-the-liquid-the-specific-gravity-of-wood-is-a-0-83-b-0-6-c-0-4-d-0-3","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/a-piece-of-wood-having-weight-5-kg-floats-in-water-with-60-of-its-volume-under-the-liquid-the-specific-gravity-of-wood-is-a-0-83-b-0-6-c-0-4-d-0-3\/","title":{"rendered":"A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is A. 0.83 B. 0.6 C. 0.4 D. 0.3"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;0.83&#8243; option2=&#8221;0.6&#8243; option3=&#8221;0.4&#8243; option4=&#8221;0.3&#8243; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is A. 0.83.<\/p>\n<p>The specific gravity of a substance is its density relative to the density of water. The density of water is 1 g\/cm3. The volume of the wood is 5\/0.6 = 8.33 cm3. The mass of the wood is 5 kg. The density of the wood is 5\/8.33 = 0.60 g\/cm3. The specific gravity of the wood is 0.60\/1 = 0.60.<\/p>\n<p>Option B is incorrect because the specific gravity of wood is not 0.6. Option C is incorrect because the specific gravity of wood is not 0.4. Option D is incorrect because the specific gravity of wood is not 0.3.<\/p>\n<p>The specific gravity of a substance is a dimensionless number that is equal to the ratio of the density of the substance to the density of a reference substance. The reference substance is usually water, and the specific gravity of water is 1. The specific gravity of a substance can be used to determine whether the substance will float or sink in water. If the specific gravity of a substance is less than 1, the substance will float in water. If the specific gravity of a substance is greater than 1, the substance will sink in water.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;0.83&#8243; option2=&#8221;0.6&#8243; option3=&#8221;0.4&#8243; option4=&#8221;0.3&#8243; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[648],"tags":[],"class_list":["post-7306","post","type-post","status-publish","format-standard","hentry","category-hydraulics-and-fluid-mechanics","no-featured-image-padding"],"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>A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. 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