IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Which of these was an action of Farmers Alliances? 2031 0

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    Involving farmers in political action
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    Encouraging farmers to give up farming
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  • 3
    Helping farmers fight for better prices
    सही
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  • 4
    Both A & C
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उत्तर : 4. "Both A & C"
व्याख्या :

Answer: D) Both A & C Explanation: The Farmers Alliance was an organized agrarian economic movement among American farmers that developed and flourished in 1875.   One of the goals of the organization was to end the adverse effects of the crop-lien system on farmers in the period following the American Civil War.   The Farmer's Alliance moved into politics in the early 1890s under the banner of the People's Party, commonly known as the "Populists."

प्र: The marked price of an article is increased by 25% and the selling price is increased by 16.66%, then the amount of profit doubles. If the original marked price be Rs. 400 which is greater than the corresponding cost price by 33.33%, what is the increased selling price? 4476 0

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    Rs. 380
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  • 2
    Rs. 420
    सही
    गलत
  • 3
    Rs. 460
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  • 4
    Rs. 440
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उत्तर : 2. "Rs. 420"
व्याख्या :

Answer: B) Rs. 420 Explanation: As given in the question, Marked price is 25% more than the Cost price. => C.P of the article = 34 x 400 = 300  Now,  Let the original S.P of the article be Rs. P Now the new S.P = P + 16.666 +13.333300 x P  => S.P = 7P6 According to the question, 7P6 - 300 = 2P - 300 => 5P = 1800 => P = Rs. 360 Hence, the increased S.P = 360 x 7/6 = Rs. 420.

प्र: Sneha’s weight is 140% of Veena’s weight. Rina’s weight is 90% of Sana’s weight. Sana weighs twice as much as Veena. If Sneha’s weight is x% of Rina’s weight, then x is equal to: 1817 0

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    596/9
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    गलत
  • 2
    605/9
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  • 3
    645/9
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  • 4
    700/9
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उत्तर : 4. "700/9"
व्याख्या :

Answer: D) 700/9 Explanation: Let Veena's weight = 1 kg Sana's weight = 2 kg Sneha's weight = 1.4 kg Rina's weight = 1.8 kg Now,according to the given data in the question, 1.8x100 = 1.4   x = 1.4 × 1001.8 = 7009 = 77 79.

प्र: What molecule carries genetic information? 1515 0

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    RNA
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    DNA
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    Proteins
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  • 4
    Nucleotides
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उत्तर : 2. "DNA"
व्याख्या :

Answer: B) DNA Explanation: The nucleus of a cell contains chromosomes, which carry genetic information in a long molecule called DNA. Genes are regions of DNA that carry the code to control a particular cell activity or the production of a particular protein.

प्र: Iodine test is used to detect 4930 0

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    Carbohydrate
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    Fat
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    Protein
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    Cholesterol
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उत्तर : 1. "Carbohydrate"
व्याख्या :

Answer: A) Carbohydrate Explanation: The iodine test is used to test for the presence of starch i.e, Carbohydrate.

प्र: Which best describes an element? 1678 0

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    An element is composed of identical atoms
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    A pure substance
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    a material that has consistent chemical properties
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  • 4
    Both A & B
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उत्तर : 4. "Both A & B"
व्याख्या :

Answer: D) Both A & B Explanation: An Element is a pure substance of one type of atom. In chemistry, any material such as carbon, hydrogen, iron, or oxygen that cannot be broken down into more fundamental substances is nothing but an element.

प्र: Digitized information can be used by computers. 1664 0

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    TRUE
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  • 2
    FALSE Answer & Explanation Answer:
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उत्तर : 1. "TRUE"
व्याख्या :

Answer: A) TRUE Explanation: TRUE. The computers and electronic devices use digitized information which is easily understood by them.   Digitization is the process of converting analog signals or information of any form into a digital format that can be understood by computer systems or electronic devices. The term is used when converting information, like text, images or voices, and sounds, into binary code.

प्र: Why does homeric literature still survive today? 2060 0

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उत्तर :
व्याख्या :

Homer's literature had created the foundation for literature and was influential in his time and the future. And they are credited as foundational components of the Western worldview.

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