IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Which of these is not related to the great depression? 1616 05b5cc66de4d2b4197774bfd9
5b5cc66de4d2b4197774bfd9- 1Drop in profitsfalse
- 2Drop in incomefalse
- 3Drop in tax revunesfalse
- 4Drop in healthtrue
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उत्तर : 4. "Drop in health"
व्याख्या :
Answer: D) Drop in health Explanation: The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, beginning in the U.S. The timing of the Great Depression varied across nations; in most countries it started in 1929 and lasted until the late-1930s. It was the longest, deepest, and most widespread depression of the 20th century. In the 21st century, the Great Depression is commonly used as an example of how far the world's economy can decline.
प्र: The compound interest on a certain sum for 2 years at 10% per annum is Rs. 1155. The simple interest on the same sum for double the time at half the rate percent per annum is ? 1616 15b5cc767e4d2b4197774fdfc
5b5cc767e4d2b4197774fdfc- 1Rs. 1100true
- 2Rs. 5500false
- 3Rs. 1400false
- 4Rs. 4120false
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उत्तर : 1. "Rs. 1100"
व्याख्या :
Answer: A) Rs. 1100 Explanation: Let the sum be Rs.x. Then, x1+101002-x=1155 ⇒x11102-1=1155 => x =5500 sum = Rs. 5500. So, S.I = Rs. 5500×5×4100 = 1100
प्र: Which is the oldest tennis tournament in the world and also prestigious? 1616 05b5cc678e4d2b4197774c1ad
5b5cc678e4d2b4197774c1ad- 1Wimbledontrue
- 2US Openfalse
- 3French Openfalse
- 4Australian Openfalse
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उत्तर : 1. "Wimbledon"
व्याख्या :
Answer: A) Wimbledon Explanation: Wimbledon Tournament in the city London, is the prestigious and the oldest tournament in the world.
प्र: Is steel a compound? 1616 05b5cc62ae4d2b4197774b8b5
5b5cc62ae4d2b4197774b8b5- 1TRUEfalse
- 2FALSEtrue
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उत्तर : 2. "FALSE"
व्याख्या :
Answer: B) FALSE Explanation: Steel is not a compound or element. Steel is an alloy of iron and carbon and other elements and hence it is a mixture. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons.
प्र: Indian-American girl won 2017 Young Scientist Challenge for water contamination detection device. What is her name ? 1616 05b5cc6c1e4d2b4197774db28
5b5cc6c1e4d2b4197774db28- 1Kavita Kumarifalse
- 2Gitanjali Raotrue
- 3Hetal Raofalse
- 4Savita Sharmafalse
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उत्तर : 2. "Gitanjali Rao"
व्याख्या :
Answer: B) Gitanjali Rao Explanation: Gitanjali Rao, an 11-year-old Indian-American schoolgirl, was named as "America’s top young scientist" for inventing a cost-effective, quick lead-contamination detector in water. The seventh-grade student was inspired by the large-scale lead contamination in water in Flint, Michigan, that came to light recently.
प्र: Change Active Voice to Passive Voice? Active voice : Has he completed the work? 1615 05b5cc6a2e4d2b4197774cbe6
5b5cc6a2e4d2b4197774cbe6- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Passive Voice : Has the work been completed by him? Rules in changing from Active voice to Passive voice : 1. Identify the subject, the verb and the object: S+V+O 2. Change the object into subject 3. Put the suitable helping verb or auxiliary verb 4. Change the verb into past participle of the verb 5. Add the preposition "by" 6. Change the subject into object.
प्र: Quality of transmission depends upon 1615 05b5cc6d9e4d2b4197774e858
5b5cc6d9e4d2b4197774e858- 1Nature of signal onlyfalse
- 2Nature of medium onlyfalse
- 3Both (A) and (B)true
- 4A) and (B) D)false
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उत्तर : 3. "Both (A) and (B)"
व्याख्या :
Answer: C) Both (A) and (B) Explanation: Quality of transmission is governed both by nature of signal and nature of communication channel/medium.
प्र: Where does translation take place in the cell? 1615 05b5cc655e4d2b4197774bd7a
5b5cc655e4d2b4197774bd7a- 1Nucleusfalse
- 2Mitochondriafalse
- 3Ribosomesfalse
- 4Cytoplasmtrue
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उत्तर : 4. "Cytoplasm"
व्याख्या :
Answer: D) Cytoplasm Explanation: Translation occurs in the cytoplasm whereas transcription occurs in the nucleus. Transcription and Translation: Terms transcription and translation in biology are generally related to the DNA and its properties. Human cells replicate. In order to do that, they have to produce the same constituents for the new cell that is to be made. The only way to do that is by producing proteins. The proteins are produced in the process that is called protein synthesis. The first step is in the nucleus where a particular gene is being expressed so it enables all protein factors to come and to replicate that part of a chromosome. This is finished when mRNA, the same single-stranded genetic code of a particular gene, is formed. This is transcription. Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation.

