IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: What is always coming but never arrives? 2183 0

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उत्तर :
व्याख्या :

It is Tomorrow. It always be tomorrow which represents coming but never arrives.

प्र: The primary Economic function of the Financial system is to 2182 0

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    Providing experts advice to investors and savers
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    Match one person's savings with another person's investment
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    Keeping interest rates low
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    Match one person's consumpion expenditure with another person's capital expenditure
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उत्तर : 2. "Match one person's savings with another person's investment"
व्याख्या :

Answer: B) Match one person's savings with another person's investment Explanation: The primary Economic function of the Financial system is to match one person's savings with another person's investment. As a key component of the financial system, banks allocate funds from savers to borrowers in an efficient manner. They provide specialized financial services, which reduce the cost of obtaining information about both savings and borrowing opportunities. These financial services help to make the overall economy more efficient.

प्र: A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is ? 2179 0

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    45/7 %
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    50/9 %
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    51/7 %
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  • 4
    47/ 9 %
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उत्तर : 2. "50/9 %"
व्याख्या :

Answer: B) 50/9 % Explanation: Let sum = S. Then, amount = 7S/6 S.I. = 7S/6 - S = S/6; Time = 3 years. Rate = (100 x S) / (S x 6 x 3) = 5 5/9 = 50/9 %.

प्र: A woman’s voice is shriller than a man’s voice due to 2179 0

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    weak vocal chords
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    lower frequency
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    higher frequency
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    higher amplitude
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उत्तर : 3. "higher frequency"
व्याख्या :

Answer: C) higher frequency Explanation: As the frequency of sound is higher, women have shriller voices than men. The shrillness or pitch of a sound is determined by its frequency. The higher the pitch shriller the voice. As the sounds produced by vocal cords of women are higher than men so women have shriller voices than men. Because their vocal cord is of smaller size. As their vocal cord is more stretched than men's.

प्र: 28 Men and 52 women working together completes a work in 22.5 days. 35 men and 65 women working together on same work will complete it in how many days? 2178 0

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    16
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    18
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    19
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    21
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उत्तर : 2. "18"
व्याख्या :

Answer: B) 18 Explanation: Clearly total persons are increased in  28/35 :: 52/65 = 4:5. As time is inversely proportional to men, so total time will decrease in the ratio 5:4. Hence, 22.5 x 4/5 = 18 days.

प्र: Which of the following is not transferred by alveoli? 2178 0

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    Gases
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    Oxygen
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    Blood
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    Carbondioxide
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उत्तर : 3. "Blood"
व्याख्या :

Answer: C) Blood Explanation: The main function of the pulmonary alveoli is to perform the transfer and exchange of gases. Here in the given options, blood is only one which is not gas.   Hence, blood is not transferred by alveoli.

प्र: The production possibilities curve illustrates the basic principle that 2178 0

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    if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced.
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    the production of more of any one good will in time require smaller and smaller sacrifices of other goods.
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    an economy will automatically obtain full employment of its resources.
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    an economy's capacity to produce increases in proportion to its population size.
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उत्तर : 1. "if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced."
व्याख्या :

Answer: A) if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced. Explanation: A graph that describes the maximum amount of one good that can be produced for every possible level of production of the other good is nothing but a production possibilities curve.

प्र: Who is the author of the book "Flaming Tresses of Draupadi" ? 2176 0

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    Smriti Irani
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    Veerappa Moily
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    Mallikarjun Kharge
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    None
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उत्तर : 2. "Veerappa Moily"
व्याख्या :

Answer: B) Veerappa Moily Explanation:

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