IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Reptile is to Lizard as Flower is to 2321 05b5cc6aee4d2b4197774d160
5b5cc6aee4d2b4197774d160- 1Orchidstrue
- 2Stemfalse
- 3Leaffalse
- 4Petalfalse
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उत्तर : 1. "Orchids"
व्याख्या :
Answer: A) Orchids Explanation: Here Lizard is a type of Reptiles whereas Orchid is a type of flowers. Other than Orchids all are parts of Plants. Hence, Reptile is to Lizard as Flower is to Orchids.
प्र: The top and bottom of a tower were seen to be at angles of depression 30° and 60° from the top of a hill of height 100 m. Find the height of the tower ? 2319 15b5cc72ce4d2b4197774f79c
5b5cc72ce4d2b4197774f79c- 142.2 mtsfalse
- 233.45 mtsfalse
- 366.6 mtstrue
- 458.78 mtsfalse
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उत्तर : 3. "66.6 mts"
व्याख्या :
Answer: C) 66.6 mts Explanation: From above diagramAC represents the hill and DE represents the tower Given that AC = 100 m angleXAD = angleADB = 30° (∵ AX || BD ) angleXAE = angleAEC = 60° (∵ AX || CE) Let DE = h Then, BC = DE = h, AB = (100-h) (∵ AC=100 and BC = h), BD = CE tan 60°=AC/CE => √3 = 100/CE =>CE = 100/√3 ----- (1) tan 30° = AB/BD => 1/√3 = 100−h/BD => BD = 100−h(√3)∵ BD = CE and Substitute the value of CE from equation 1 100/√3 = 100−h(√3) => h = 66.66 mts The height of the tower = 66.66 mts.
प्र: Most bacteria reproduce by 2318 05b5cc615e4d2b4197774b6f1
5b5cc615e4d2b4197774b6f1- 1buddingfalse
- 2binary fissiontrue
- 3fragmentationfalse
- 4mitosisfalse
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उत्तर : 2. "binary fission"
व्याख्या :
Answer: B) binary fission Explanation: Most bacteria is reproduce by binary fission.
प्र: What City has No People? 2316 05b5cc6afe4d2b4197774d1b5
5b5cc6afe4d2b4197774d1b5- 1Velocityfalse
- 2Electricityfalse
- 3Elasticityfalse
- 4All the abovetrue
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उत्तर : 4. "All the above"
व्याख्या :
Answer: D) All the above Explanation: Answer for What City has No People can be any of these words which has city in it like Velocity, Elasticity or Electricity. In general the answer for the riddle What City has No People is Electricity.
प्र: A can do a piece of work in 21 days and B in 28 days. Together they started the work and B left after 4 days. In how many days can A alone do the remaining work ? 2316 05b5cc6e5e4d2b4197774ed3d
5b5cc6e5e4d2b4197774ed3d- 114 daystrue
- 218 daysfalse
- 321 deaysfalse
- 416 daysfalse
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उत्तर : 1. "14 days"
व्याख्या :
Answer: A) 14 days Explanation: Let A worked for x days. x/21 + 4/28 = 1 => x = 18 A worked for 18 days. So, A can complete the remaining work in 18 - 4 = 14 days.
प्र: Which structural formula represents a dipole? 2314 05b5cc675e4d2b4197774c125
5b5cc675e4d2b4197774c125- 14false
- 23false
- 32false
- 41true
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उत्तर : 4. "1"
व्याख्या :
Answer: D) 1 Explanation: What is Dipole : when two atoms in a molecule have substantially different electronegativity: One atom attracts electrons more than another, becoming more negative, while the other atom becomes more positive.
प्र: The correct order of events during meiosis is 2314 05b5cc651e4d2b4197774bccb
5b5cc651e4d2b4197774bccb- 1prophase I, metaphase I, anaphase I, telophase I, cytokinesis, meiosis II.true
- 2anaphase I, telophase I, prophase I, cytokinesis, meiosis II.false
- 3cytokinesis, metaphase I, anaphase I, telophase I,false
- 4telophase I, prophase I, cytokinesis, meiosis II, anaphasefalse
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उत्तर : 1. "prophase I, metaphase I, anaphase I, telophase I, cytokinesis, meiosis II."
व्याख्या :
Answer: A) prophase I, metaphase I, anaphase I, telophase I, cytokinesis, meiosis II. Explanation: The correct order of events during meiosis is: prophase I, metaphase I, anaphase I, telophase I, cytokinesis, and meiosis II.
प्र: If MILITARY can be written as 1, 2, 3, 2, 4, 5, 6, 7 then how can TIMLI be written in that code ? 2307 05b5cc6cde4d2b4197774e1b8
5b5cc6cde4d2b4197774e1b8- 12, 3, 1, 4, 2false
- 24, 2, 1, 5, 7false
- 33, 4, 5, 1, 6false
- 44, 2, 1, 3, 2true
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उत्तर : 4. "4, 2, 1, 3, 2"
व्याख्या :
Answer: D) 4, 2, 1, 3, 2 Explanation:

