IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Which layer of the atmosphere contains the ozone layer? 1993 05b5cc6aee4d2b4197774d143
5b5cc6aee4d2b4197774d143- 1Tropospherefalse
- 2Stratospheretrue
- 3Thermospherefalse
- 4Mesospherefalse
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उत्तर : 2. "Stratosphere"
व्याख्या :
Answer: B) Stratosphere Explanation: The ozone layer is a region of Earth's Stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The Atmosphere is divided into 4 layers according to major changes in temperature. They are : 1. Troposphere, 2. Stratosphere, 3. Mesosphere and 4. Thermosphere. The farther away from earth, the thinner the atmosphere gets.
प्र: What is always coming but never arrives? 1993 05b5cc68be4d2b4197774c3b5
5b5cc68be4d2b4197774c3b5- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
It is Tomorrow. It always be tomorrow which represents coming but never arrives.
प्र: During World war II, which were axis Nations? 1990 05b5cc64ae4d2b4197774bc3a
5b5cc64ae4d2b4197774bc3a- 1Italyfalse
- 2Germanyfalse
- 3Japanfalse
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: Axis powers, the coalition headed by Germany, Italy, and Japan that opposed the Allied powers in World War II. The "Axis powers" formally took the name after the Tripartite Pact was signed by Germany, Italy, and Japan on 27 September 1940, in Berlin. The pact was subsequently joined by Hungary (20 November 1940), Romania (23 November 1940), Slovakia (24 November 1940), and Bulgaria (1 March 1941) and these were the nations that fought in World War II against the Allied forces.
प्र: A sum is divided among K, L and M in such a way that for each rupee K gets, L gets 45 paisa and M gets 30 paisa. If the share of L is Rs. 27, what is the total amount ? 1990 05b5cc6e0e4d2b4197774eb66
5b5cc6e0e4d2b4197774eb66- 1Rs. 159false
- 2Rs. 96false
- 3Rs. 147false
- 4Rs. 105true
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उत्तर : 4. "Rs. 105"
व्याख्या :
Answer: D) Rs. 105 Explanation: K : L : M = 100 : 45 : 30 = 20 : 9 : 6 Given L share is 27 => 9 ------ 27 35 ------ ? => 105
प्र: Find the odd man out of the following number series? 22, 26, 42, 78, 142, 244 1989 05b5cc619e4d2b4197774b70a
5b5cc619e4d2b4197774b70a- 1244true
- 2142false
- 378false
- 442false
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उत्तर : 1. "244"
व्याख्या :
Answer: A) 244 Explanation: The given number series 22, 26, 42, 78, 142, 244 follows a pattern that, 2222 + 22 = 22 + 4 = 2626 + 42 = 26 + 16 = 4242 + 62 = 42 + 36 = 7878 + 82 = 78 + 64 = 142142 + 102 = 142 + 100 = 242 Hence, the odd one in the given number series is 244.
प्र: How many Teaspoons in a Tablespoon? 1988 15b5cc6b2e4d2b4197774d35a
5b5cc6b2e4d2b4197774d35a- 14false
- 25false
- 32false
- 43true
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उत्तर : 4. "3"
व्याख्या :
Answer: D) 3 Explanation: Tablespoon > Teaspoon In US & UK, 1 Tablespoon = 3 Teaspoons.
प्र: Solve the Riddle? 1987 05b5cc6a0e4d2b4197774ca47
5b5cc6a0e4d2b4197774ca47- 179 hrsfalse
- 272 hrsfalse
- 352 hrsfalse
- 418 hrstrue
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उत्तर : 4. "18 hrs"
व्याख्या :
Answer: D) 18 hrs Explanation: From the given data, 18 snakes can eat 18 bananas in 18 hrs. => 1 snake can eat 1 banana in 18 hrs => 79 snakes can eat 79 bananas in 18 hrs. Hence, 18 hrs.
प्र: A pulse can be detected most easily in 1987 05b5cc690e4d2b4197774c450
5b5cc690e4d2b4197774c450- 1a veinfalse
- 2a lactealfalse
- 3an arterytrue
- 4a capillaryfalse
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उत्तर : 3. "an artery"
व्याख्या :
Answer: C) an artery Explanation: A pulse can be detected most easily in Arteries as they are under much greater pressure than veins because they are carrying blood away from the heart which is the pumping machine to force blood to move to all of the body. Every time the hear contracts, it can be felt in an artery where a surge of blood has just been forced. A capillary is too small to feel a pulse and a lacteal is part of the lymphatic system found in the small intestine.

