CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: Planets do not twinkle because 2105 05b5cc6a4e4d2b4197774cca5
5b5cc6a4e4d2b4197774cca5- 1Far distancefalse
- 2Total internal reflectionfalse
- 3Refractionfalse
- 4Near distancetrue
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उत्तर : 4. "Near distance"
व्याख्या :
Answer: D) Near distance Explanation: Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.
प्र: Which statement describes the term salary? 2104 05b5cc65ee4d2b4197774be64
5b5cc65ee4d2b4197774be64- 1Salary refers to the fixed amount paid on a daily basis.false
- 2Salary refers to the varying amount paid on a daily basis.false
- 3Salary refers to the fixed amount paid on a weekly, bi-weekly, or monthly basis.true
- 4None of the abovefalse
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उत्तर : 3. "Salary refers to the fixed amount paid on a weekly, bi-weekly, or monthly basis."
व्याख्या :
Answer: C) Salary refers to the fixed amount paid on a weekly, bi-weekly, or monthly basis. Explanation: A salary is best described as a fixed amount of income that is paid to an individual on a weekly, bi-weekly or monthly basis. A salary can also be described as the annual earnings paid out over a year.
प्र: Source of river Mahanadi ? 2104 05b5cc6cde4d2b4197774e1d1
5b5cc6cde4d2b4197774e1d1- 1Mahabaleshwarfalse
- 2Trimbak Plateaufalse
- 3Dandakaranyatrue
- 4Nonefalse
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उत्तर : 3. "Dandakaranya"
व्याख्या :
Answer: C) Dandakaranya Explanation:
प्र: What is the next number in this series ? 4, 6, 12, 18, 30, 42, 60, ? 2102 05b5cc70be4d2b4197774f2f0
5b5cc70be4d2b4197774f2f0- 171false
- 272true
- 373false
- 469false
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उत्तर : 2. "72"
व्याख्या :
Answer: B) 72 Explanation: With close observation, you will note that each number in the list is in the middle of two prime numbers. Thus: 4 is in the middle of 3 and 5, 6 is in the middle of 5 and 7, 12 is in the middle of 11 and 13, 18 is in the middle of 17 and 19, 30 is in the middle of 29 and 31. 42 is in the middle of 41 and 43, 60 is in the middle of 59 and 61. Therefore, the next number would be the one that is in the middle of the next two prime numbers, which is 72 (which is in the middle of 71 and 73).
प्र: Lightning heats the surrounding air to 2102 05b5cc6abe4d2b4197774cfb7
5b5cc6abe4d2b4197774cfb7- 1300 deg Centfalse
- 23000 deg Centfalse
- 330000 deg Centtrue
- 4300000 deg Centfalse
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उत्तर : 3. "30000 deg Cent"
व्याख्या :
Answer: C) 30000 deg Cent Explanation: Lightning is extremely hot — a flash can heat the air around it to temperatures five times hotter than the sun’s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash. Lightning heats the surrounding air to about 30,000 degrees Centigrades.
प्र: Sripad has scored average of 65 marks in three objects. In no subjects has he secured less than 58 marks. He has secured more marks in Maths than other two subjects. What could be his maximum score in Maths ? 2102 05b5cc74fe4d2b4197774fb21
5b5cc74fe4d2b4197774fb21- 179true
- 277false
- 376false
- 473false
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उत्तर : 1. "79"
व्याख्या :
Answer: A) 79 Explanation: Assuming Sripad has scored the least marks in subject other than science,Then the marks he could secure in other two are 58 each.Since the average mark of all the 3 subject is 65.i.e (58+58+x)/3 = 65116 + x = 195x = 79 marks. Therefore, the maximum marks he can score in maths is 79.
प्र: Maneela, Raghu and Aravind have some jems with each of them. Five times the number of jems with Raghu equals seven times the number of jems with Maneela while five times the number of jems with Maneela equals seven times the number of jems with Aravind. What is the minimum number of jems that can be there with all three of them put together ? 2102 05b5cc6c7e4d2b4197774de6e
5b5cc6c7e4d2b4197774de6e- 1108false
- 2107false
- 3109true
- 4110false
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उत्तर : 3. "109"
व्याख्या :
Answer: C) 109 Explanation: From given data, R : M = 5 : 7 M : A = 5 : 7 R : M : A = 25 : 35 : 49 25 + 35 + 49 = 109
प्र: Who propounded the Market law? 2102 05b5cc69de4d2b4197774c8d0
5b5cc69de4d2b4197774c8d0- 1J. B. Saytrue
- 2T. R. Malthusfalse
- 3Adam Smithfalse
- 4David Ricardofalse
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उत्तर : 1. "J. B. Say"
व्याख्या :
Answer: A) J. B. Say Explanation: