GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: Which of the following equations represents Photosynthesis? 2200 05b5cc6afe4d2b4197774d1c4
5b5cc6afe4d2b4197774d1c4- 16CO2 + 6H2O -----> C6H12O6 + 6O2true
- 2C6H12O6 + 6O2 -----> CO2 + 6H2Ofalse
- 3CO2 + H2O -----> C6H12O6 + 6O2false
- 46O2 + 6H2O -----> C6H12O6 + 6CO2false
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उत्तर : 1. "6CO2 + 6H2O -----> C6H12O6 + 6O2"
व्याख्या :
Answer: A) 6CO2 + 6H2O -----> C6H12O6 + 6O2 Explanation: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities. Photosynthesis can be represented using a chemical equation. The overall balanced equation is 6CO2 + 6H2O →Sunlight C6H12O6 + 6O2Source of Carbon & Oxygen + Source of Electrons & Hydrogen + Energy that drives Photosynthesis ----> Sugar + Gas produced by splitting water. Where CO2 = carbon dioxide H2O = waterC6H12O6 = glucose O2 = oxygen.
प्र: An intelligent boy is doing a jigsaw with 275 pieces. Each day that he fits pieces together there are fewer pieces left, and it is reasonable to assume that he fits more pieces each day because the number left to sort out diminishes progressively. Hence he is able to fit an extra piece as each day goes by. On the first day he fits 20 pieces. How many days does it take for him to complete the puzzle ? 2193 05b5cc71ee4d2b4197774f59a
5b5cc71ee4d2b4197774f59a- 111 daystrue
- 215 daysfalse
- 313 daysfalse
- 416 daysfalse
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उत्तर : 1. "11 days"
व्याख्या :
Answer: A) 11 days Explanation: Let 'n' number of days it take to complete. we know that sum of n number= n/2[2a+(n-1)d]where a=20,d=1;n/2[2x20+(n-1)1]=275n[n+39]=550n2 + 39n - 550 = 0 n2+ 50n - 11n - 550 = 0(n-11) (n-50) = 0n-11 = 0;n = 11(Days).
प्र: The interest on a certain deposit at 4.5% p.a. is Rs. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ? 2193 05b5cc6dde4d2b4197774ea19
5b5cc6dde4d2b4197774ea19- 1Rs. 22.5true
- 2Rs. 2.5false
- 3Rs. 202false
- 4Rs. 25false
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उत्तर : 1. "Rs. 22.5"
व्याख्या :
Answer: A) Rs. 22.5 Explanation: We know that I = PTR/100=> P = 20250/4.5 = 4500Now, new Interest at 5% = 4500x1x5/100 = 225Now the additional amount = 225 - 202.5 = Rs. 22.5
प्र: I. a2-7a+12 = 0, II. b2-3b+2 = 0 Solve both the equations to find the values of a and b ? 2188 05b5cc6e3e4d2b4197774eced
5b5cc6e3e4d2b4197774eced- 1if a > btrue
- 2if a < bfalse
- 3if the relationship between a and b cannot be established.false
- 4if a ≤ bfalse
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उत्तर : 1. "if a > b"
व्याख्या :
Answer: A) if a > b Explanation: I. (a - 3)(a - 4) = 0 => a = 3, 4 II. (b - 2)(b - 1) = 0 => b = 1, 2 => a > b
प्र: What kind of tree can you carry in your hand? 2186 05b5cc651e4d2b4197774bcfe
5b5cc651e4d2b4197774bcfe- उत्तर देखें
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उत्तर :
व्याख्या :
Palm tree.
प्र: Fill in the blanks with suitable prepositions from the given options. The dog was sitting _______ the table waiting _______ catch the ball that was thrown ________ him _________ his master. 2185 05b5cc74fe4d2b4197774fb3f
5b5cc74fe4d2b4197774fb3f- 1below, for, to, byfalse
- 2under, for, towards, byfalse
- 3up, to, towards, byfalse
- 4under, to, towards, bytrue
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उत्तर : 4. "under, to, towards, by"
व्याख्या :
Answer: D) under, to, towards, by Explanation: The dog was sitting under the table waiting to catch the ball that was thrown towards him by his master.
प्र: Malleability and Ductility of metals can be accounted due to 2184 05b5cc670e4d2b4197774c052
5b5cc670e4d2b4197774c052- 1the crystalline structure in metalfalse
- 2the interaction of electrons with metal ions in the latticefalse
- 3the presence of electrostatic forcefalse
- 4the capacity of layers of metal ions to slide over the othertrue
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उत्तर : 4. "the capacity of layers of metal ions to slide over the other"
व्याख्या :
Answer: D) the capacity of layers of metal ions to slide over the other Explanation:
प्र: FRIEND : FPIBNZ :: PATRON : ? 2184 05b5cc6b1e4d2b4197774d2fe
5b5cc6b1e4d2b4197774d2fe- 1PTYOPIfalse
- 2PYTOPJfalse
- 3PYTOOJtrue
- 4PYTPOJfalse
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उत्तर : 3. "PYTOOJ"
व्याख्या :
Answer: C) PYTOOJ Explanation: FRIEND : FPIBNZ Follows a pattern that, F - F R- second letter to left of R i.e, P I - I E - Third letter to left of E i.e, B N - N D - Fourth letter to left of D i.e, Z Similarly, for PATRON P - P A - second letter to left of A i.e, Y T - T R - Third letter to left of R i.e, O O - O N - Fourth letter to left of N i.e, J PATRON : PYTOOJ Therefore, FRIEND : FPIBNZ :: PATRON : PYTOOJ