IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: The NADPH required for the calvin cycle comes from 1073 05b5cc662e4d2b4197774be97
5b5cc662e4d2b4197774be97- 1Reactions initiated in photosystem 1false
- 2Citric acid cyclefalse
- 3Reactions initiated in photosystem 2true
- 4Glycolysisfalse
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उत्तर : 3. "Reactions initiated in photosystem 2"
व्याख्या :
Answer: C) Reactions initiated in photosystem 2 Explanation: ATP and NADPH produced by the light reactions are used in the Calvin cycle to reduce carbon dioxide to sugar. The Calvin cycle is similar to the Krebs cycle in that the starting material is regenerated by the end of the cycle.
प्र: With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. Find the length of the total journey? 1768 05b5cc662e4d2b4197774be9c
5b5cc662e4d2b4197774be9c- 170 kmstrue
- 260 kmsfalse
- 345 kmsfalse
- 430 kmsfalse
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उत्तर : 1. "70 kms"
व्याख्या :
Answer: A) 70 kms Explanation: Let the time taken by train be 't' hrs. Then, 40t = 35t + 1560 40t = 35t + 35/4 t = 7/4 hrs Therefore, Required length of the total journey d = s x t = 40 x 7/4 = 70 kms.
प्र: What does 'M' stand for in Roman numerals? 1410 05b5cc662e4d2b4197774be8f
5b5cc662e4d2b4197774be8f- 11false
- 250false
- 3500false
- 41000true
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उत्तर : 4. "1000"
व्याख्या :
Answer: D) 1000 Explanation: Letters of the alphabet used in ancient Rome to represent numbers: I = 1; V = 5; X = 10; L = 50; C = 100; D = 500; M = 1000. The numbers one through ten are written I, II, III, IV, V, VI, VII, VIII, IX, and X.
प्र: In 1914 congress formed the federal trade commission to 963 05b5cc662e4d2b4197774be94
5b5cc662e4d2b4197774be94- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
When the FTC was created in 1914, its purpose was to monitor all business practices to prevent unfair methods of competition in commerce as part of the battle to "bust the trusts." Over the years, Congress passed additional laws giving the agency greater authority to police anticompetitive practices.
प्र: Plants are photosynthetic autotrophs. What does this mean? 1279 05b5cc662e4d2b4197774be95
5b5cc662e4d2b4197774be95- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis. In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells. Hence, that is why, Plants are called photosynthetic autotrophs.
प्र: Square units 13 by 9 of an office area is 1693 05b5cc662e4d2b4197774be89
5b5cc662e4d2b4197774be89- 197false
- 2117true
- 3107false
- 4127false
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उत्तर : 2. "117"
व्याख्या :
Answer: B) 117 Explanation: Square units 13 by 9 of an office means office of length 13 units and breadth 9 units. Now its area is 13x 9 = 117 square units or units square.
प्र: What event resulted in the creation of NASA? 1422 05b5cc662e4d2b4197774be8e
5b5cc662e4d2b4197774be8e- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
It has been said that the creation of NASA was due to the space exploration race between the US and the Soviet Union. One of the drives to the creation of NASA is the launching of Sputnik on October 4, 1957. Since then, further explorations have been made by the agency.
प्र: Effective teamwork and high productivity are good indications of positive 2392 05b5cc662e4d2b4197774be7f
5b5cc662e4d2b4197774be7f- 1productivity goalstrue
- 2reinforcementfalse
- 3horizontal relationshipsfalse
- 4socializingfalse
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उत्तर : 1. "productivity goals"
व्याख्या :
Answer: A) productivity goals Explanation: In general, we know that Effective teamwork yields high productivity which is a good indications of positive productivity goals.

