IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Which of the following Valleys is known as "Paradise of Earth" ? 2045 05b5cc6d5e4d2b4197774e5ed
5b5cc6d5e4d2b4197774e5ed- 1Kullu Valleyfalse
- 2Doon Valleyfalse
- 3Kangra Valleyfalse
- 4Kashmir Valleytrue
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उत्तर : 4. "Kashmir Valley"
व्याख्या :
Answer: D) Kashmir Valley Explanation:
प्र: I have an eye but cannot see? 2044 05b5cc66de4d2b4197774bfe3
5b5cc66de4d2b4197774bfe3- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Its a Needle. Needle has an eye but can't see.
प्र: “Neither a borrower nor a lender be, for loan oft loses both itself and friend.” What is the meaning of the given phrase? 2044 05b5cc626e4d2b4197774b86e
5b5cc626e4d2b4197774b86e- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
It is said by Lord Polonius. It means do not lend or borrow money from a friend, because if you do so, you will lose both your friend and your money. If you lend, he will avoid paying back, and if you borrow you will fall out of your savings, as you turn into a spendthrift, and face humiliation.
प्र: Spongy, porous bone tissue is also called 2043 05b5cc636e4d2b4197774ba39
5b5cc636e4d2b4197774ba39- 1Compact bonefalse
- 2Bone fissurefalse
- 3Yellow bone marrowfalse
- 4Cancellous bonetrue
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उत्तर : 4. "Cancellous bone"
व्याख्या :
Answer: D) Cancellous bone Explanation: Spongy, porous bone tissue is also called cancellous bone. Cancellous bone is found in bones that aren't generally under significant stress like in the shoulder blades, ribs, parts of the skull, and at the ends of long bones.
प्र: On sport’s day, if 12 children were made to stand in each column, 98 columns could be formed. After a certain music being played the plan was that the children have to stand in concentric circles such that the innermost circle will have one student, the next circle will have two students, the third circle will have 3 students and so on. How many circles will be formed in this manner ? 2043 05b5cc71ee4d2b4197774f577
5b5cc71ee4d2b4197774f577- 144false
- 246false
- 348true
- 449false
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उत्तर : 3. "48"
व्याख्या :
Answer: C) 48 Explanation: No. of students will be 98 x 12 = 1176let us consider n circles then 1 + 2 + 3 + ....+ n = 1176n(n+1)/2 = 1176n = 48 circles.
प्र: What does 'M' stand for in chemistry? 2043 05b5cc615e4d2b4197774b6bd
5b5cc615e4d2b4197774b6bd- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.
प्र: What has four wheels and flies? 2042 05b5cc63de4d2b4197774bae8
5b5cc63de4d2b4197774bae8- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
Garbage truck. It’s true, a garbage truck has 4 wheels and lots of flies because flies like garbage. Here flies means insects like houseflies, mosquitoes, ... It doesn't mean that it flies in the air.
प्र: The production possibilities curve illustrates the basic principle that 2042 05b5cc62fe4d2b4197774b96a
5b5cc62fe4d2b4197774b96a- 1if all the resources of an economy are in use, more of one good can be produced only if less of another good is produced.true
- 2the production of more of any one good will in time require smaller and smaller sacrifices of other goods.false
- 3an economy will automatically obtain full employment of its resources.false
- 4an economy's capacity to produce increases in proportion to its population size.false
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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.