IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: The sum of one-half, one-third and one-fourth of a number exceeds the number by 22. The number is 1829 05b5cc73ae4d2b4197774f907
5b5cc73ae4d2b4197774f907- 1264true
- 2284false
- 3215false
- 4302false
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उत्तर : 1. "264"
व्याख्या :
Answer: A) 264 Explanation: Let the number be 'x'. Then, from given data x/2 + x/3 + x/4 = x+2213x/12 = x+22x = 264
प्र: Nucleus of Hydrogen atom consists of 1829 05b5cc6aee4d2b4197774d149
5b5cc6aee4d2b4197774d149- 12 protons onlyfalse
- 22 neutrons onlyfalse
- 31 proton onlytrue
- 41 electron onlyfalse
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उत्तर : 3. "1 proton only"
व्याख्या :
Answer: C) 1 proton only Explanation: The nucleus of hydrogen consists of only a single proton. Its parts are a single negatively-charged electron that circles a single positively-charged nucleus of the hydrogen atom. The electron is bound to the nucleus by the Coulomb force.
प्र: Which of the following languages is a Slavic Language? 1829 05b5cc6b3e4d2b4197774d3d2
5b5cc6b3e4d2b4197774d3d2- 1Polishtrue
- 2Flemishfalse
- 3Romanianfalse
- 4Gaelicfalse
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उत्तर : 1. "Polish"
व्याख्या :
Answer: A) Polish Explanation: Slavic languages, also called Slavonic languages, a subfamily of the Indo-European family of languages Eastern European ethnic group, commonly associated with Russia, the Baltic States, and other Eastern European countries. peoples of the lands of today's Eastern Europe and Russia have excited curiosity and beckoned visitors. Key to these peoples and cultures are the Slavic languages: 1. Russian, 2. Ukrainian, 3. Polish, 4. Czech, and 5. Bosnian/Croatian/Serbian. Flemish is the language of many Belgians. Romanians are more Hungarian or Balkans-affiliated than Russian. Gaelic is the language of the Celts (Scotland/Ireland).
प्र: A fair coin is tossed 11 times. What is the probability that only the first two tosses will yield heads ? 1828 05b5cc6c8e4d2b4197774df23
5b5cc6c8e4d2b4197774df23- 1(1/2)^11true
- 2(9)(1/2)false
- 3(11C2)(1/2)^9false
- 4(1/2)false
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उत्तर : 1. "(1/2)^11"
व्याख्या :
Answer: A) (1/2)^11 Explanation: Probability of occurrence of an event, P(E) = Number of favorable outcomes/Numeber of possible outcomes = n(E)/n(S) ⇒ Probability of getting head in one coin = ½, ⇒ Probability of not getting head in one coin = 1- ½ = ½, Hence, All the 11 tosses are independent of each other. ∴ Required probability of getting only 2 times heads =122×129=1211
प्र: Penny has 5 children, 1st is January, 2nd kid February, 3rd is called march , 4th is April. What is the name of the 5th. 1828 05b5cc6a4e4d2b4197774cc7b
5b5cc6a4e4d2b4197774cc7b- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Here If you notice the difference, There is no question mark (?) at the end of the puzzle. In that case, "What" is the name of the 5th child.
प्र: What is common between Aerobic and Anaerobic Respiration? 1828 05b5cc6abe4d2b4197774d04d
5b5cc6abe4d2b4197774d04d- 1Krebs cyclefalse
- 2Glycolysistrue
- 3Electron transport chainfalse
- 4All the abovefalse
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उत्तर : 2. "Glycolysis"
व्याख्या :
Answer: B) Glycolysis Explanation: Glycolysis is common between Aerobic and Anaerobic Respiration. Cellular respiration is the process by which glucose is broken down to form ATP molecules, which act as carriers of cellular energy. The first phase is called glycolysis and is common to both aerobic (respiration in the presence of oxygen) and anaerobic (respiration in the absence of oxygen) respiration. During glycolysis, glucose is split to forms two pyruvate molecules and 2 molecules of ATP. This occurs in the cytoplasm of the cell. If oxygen in present, the pyruvate molecules will be used in the Krebs cycle, to yield more ATP molecules. If oxygen is absent, the pyruvate is converted into lactic acid, or ethanol and carbon dioxide, in animals or plants, respectively.
प्र: Light Year is related to 1828 05b5cc6b7e4d2b4197774d601
5b5cc6b7e4d2b4197774d601- 1Distancetrue
- 2Accelerationfalse
- 3Velocityfalse
- 4Intensity of Lightfalse
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उत्तर : 1. "Distance"
व्याख्या :
Answer: A) Distance Explanation: Light Year is related to Distance. It is the unit of Distance. It is about 9.5 Trillion Kms or 5.9 Trillion miles. It is the distance that light travels in vaccum in one julian year i.e, 365.25 days.
प्र: Find the next two numbers in the sequence 4, 12, 6, 18, 12, 26, 30, ?, ? 1828 05b5cc6b8e4d2b4197774d655
5b5cc6b8e4d2b4197774d655- 136 & 90true
- 290 & 41false
- 345 & 36false
- 441 & 36false
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उत्तर : 1. "36 & 90"
व्याख्या :
Answer: A) 36 & 90 Explanation: the next 2 number in series we need to divide the series into 2 different series First series : 4 , 6, 12, 30 ?? Second Series : 12,18,26, ?? So we need to see for the pattern for those series in order to find the next two number , we can do this by finding the difference or division , multiplication logic whatever may apply : Pattern of Series 1 : 6 divide 4 : 1.5 Next number i.e 12 divided by 6=2 Next number i.e 30 divided by 12 =2.5 So series is going in multiples of 1.5, 2, 2.5, 3 , so on So first series will look like 4 , 6, 12, 30, 30x3 =90 Pattern of Series 2 : 12,18,26, ?? Its simple Adding numbers with iterative logic (i.e 6, 8, then followed by 10, 12) Series will be like 12,18,26,36. For the next two numbers : Series will be like 4, 12, 6, 18, 12, 26, 30, 36, 90

