IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Okhla Bird Sanctuary is located in 2095 05b5cc6b2e4d2b4197774d39f
5b5cc6b2e4d2b4197774d39f- 1Rajasthanfalse
- 2West Bengalfalse
- 3Maharashtrafalse
- 4Uttar Pradeshtrue
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उत्तर : 4. "Uttar Pradesh"
व्याख्या :
Answer: D) Uttar Pradesh Explanation: Okhla Bird Sanctuary is located in Uttar Pradesh. Okhla Bird Sanctuary is a bird sanctuary at the Okhla barrage over Yamuna River. It is situated in Noida, Gautam Buddh Nagar district, on Delhi-Uttar Pradesh state border and known as a haven for over 300 bird species.
प्र: Rohith Agarwal has three children--- Lila, Visal and Avinash. Avinash married Monika, the eldest daughter of Mr. and Mrs. Roy. The Roys married their youngest daughter to the eldest son of Mr. and Mrs. Sharma, and they had two children named Amit and Shashi. The Roys have two more children, Roshan and Vandana, Both elder to Veena. Sanketh and Yashwanth are sons of Avinash and Monika. Rashmi is the daughter of Amit. 1) How is Veena related to Rashmi ? (a)Aunt (b)Niece (c)Sister (d)Grand mother 2) How is Vishal related to Vandana ? (a)Brother (b)Brother-in-law (c)Cousin (d)Nephew 3) What is the surname of Yashwanth ? (a)Sharma (b)Roy (c)Agarwal (d)None 2095 05b5cc758e4d2b4197774fbe4
5b5cc758e4d2b4197774fbe4- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Answer 1) dRashmi is the daughter of Amit who is son of Veena.Therefore, Veena is Grand mother of Rashmi. Answer 2) bVandana's sister is Vishal's brother's wife.Therfore, Vishal is Vandana's Brother-in-law. Answer 3) cYashwanth is son of Avinash who is the son of Rohit Agarwal.Therefore, surname of Yashwanth is Agarwal.
प्र: Solve the Riddle? 2094 05b5cc6a0e4d2b4197774ca47
5b5cc6a0e4d2b4197774ca47- 179 hrsfalse
- 272 hrsfalse
- 352 hrsfalse
- 418 hrstrue
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उत्तर : 4. "18 hrs"
व्याख्या :
Answer: D) 18 hrs Explanation: From the given data, 18 snakes can eat 18 bananas in 18 hrs. => 1 snake can eat 1 banana in 18 hrs => 79 snakes can eat 79 bananas in 18 hrs. Hence, 18 hrs.
प्र: Who discovered the monomers of nucleic acids? 2094 05b5cc639e4d2b4197774ba87
5b5cc639e4d2b4197774ba87- 1James Watson, Francis Crick, and Rosalind Franklinfalse
- 2Friedrich Miescherfalse
- 3Phoebus Levenetrue
- 4Gerardus Johannes Mulder and Jöns Jacob Berxeliusfalse
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उत्तर : 3. "Phoebus Levene"
व्याख्या :
Answer: C) Phoebus Levene Explanation: Deoxyribonucleic acid (DNA) is a nucleic acid polymer composed of monomers called nucleotides. Nucleotides are composed of three components: (1) a pentose sugar; (2) a nitrogenous base; and (3) one to three phosphate groups. Phoebus Levene, a Russian biochemist was the first to discover the nucleotide and the first to correctly identify the way nucleic acid molecules, DNA.
प्र: When during the Cell Cycle are Chromosomes visible? 2094 05b5cc6aae4d2b4197774cf6a
5b5cc6aae4d2b4197774cf6a- 1only during interphasefalse
- 2only during cell divisiontrue
- 3only during G1 phasefalse
- 4only during they are replicatedfalse
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उत्तर : 2. "only during cell division"
व्याख्या :
Answer: B) only during cell division Explanation: During most of the cell cycle, interphase, the chromosomes are somewhat less condensed and are not visible as individual objects under the light microscope. However during cell division, mitosis, the chromosomes become highly condensed and are then visible as dark distinct bodies within the nuclei of cells. The chromosomes are most easily seen and identified at the metaphase stage of cell division and most of the chromosome images in this gallery are pictures of metaphase chromomosomes. The cell division takes place in mitosis stage.
प्र: A substance that cannot be broken down into simpler substances 2093 05b5cc69ee4d2b4197774c98a
5b5cc69ee4d2b4197774c98a- 1Heterogenous mixurefalse
- 2Compoundfalse
- 3Homogenous mixturefalse
- 4Elementtrue
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उत्तर : 4. "Element"
व्याख्या :
Answer: D) Element Explanation: A substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen. Material composed of only one kind of matter throughout (same atoms or same molecules).
प्र: If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream. 2093 05b5cc6afe4d2b4197774d278
5b5cc6afe4d2b4197774d278- 12.8 hrsfalse
- 22.7 hrstrue
- 32.6 hrsfalse
- 42.5 hrsfalse
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उत्तर : 2. "2.7 hrs"
व्याख्या :
Answer: B) 2.7 hrs Explanation: Let Speed of boat in still water = b Let Speed of still water = w Then we know that, Speed of Upstream = U = boat - water Speed of Downstream = D = boat + water Given, U + D = 82 b - w + b + w = 82 2b = 82 => b = 41 kmph From the given data, 41 - w = 105/3 = 35 w = 6 kmph Now, b + w = 126/t => 41 + 6 = 126/t => t = 126/47 = 2.68 hrs.
प्र: In which year was the Supreme Court of India established? 2092 05b5cc78fe4d2b419777503a3
5b5cc78fe4d2b419777503a3- 11951false
- 21949false
- 31950true
- 41947false
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उत्तर : 3. "1950"
व्याख्या :
Answer: C) 1950 Explanation: The Supreme Court of India was established in the year 1950.

