IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: If the production possibilities curve was a straight line, this would imply that 1265 05b5cc633e4d2b4197774b9e1
5b5cc633e4d2b4197774b9e1- 1Economic resources are perfectly substitutable, in the production of the two productsfalse
- 2Equal quantities of both products are produced at each possible point on the curvefalse
- 3The two products will sell at the same market pricetrue
- 4The two products are equally important to consumersfalse
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उत्तर : 3. "The two products will sell at the same market price"
व्याख्या :
Answer: C) The two products will sell at the same market price Explanation: A production–possibility frontier (PPF) or production possibility curve (PPC) is the possible tradeoff of producing combinations of goods with constant technology and resources per unit time.
प्र: Which method of expressing direction is indicated in the illustration? 1338 05b5cc633e4d2b4197774b9dc
5b5cc633e4d2b4197774b9dc- 1Sectionfalse
- 2Interjuctionfalse
- 3Intersectiontrue
- 4None of the abovefalse
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उत्तर : 3. "Intersection"
व्याख्या :
Answer: C) Intersection Explanation:
प्र: The term facultative anaerobe refers to an organism that 1421 05b5cc633e4d2b4197774b9d7
5b5cc633e4d2b4197774b9d7- 1Uses oxygen or grows without oxygen.true
- 2Requires less oxygen than is present in air.false
- 3Prefers to grow without oxygen.false
- 4Is killed by oxygen.false
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उत्तर : 1. "Uses oxygen or grows without oxygen."
व्याख्या :
Answer: A) Uses oxygen or grows without oxygen. Explanation: The term facultative anaerobe refers to an organism that which uses oxygen when it is present or grows without oxygen when it is not there.
प्र: I go in hard. I come out soft. You blow me hard. What am I? 1017 05b5cc632e4d2b4197774b9d6
5b5cc632e4d2b4197774b9d6- उत्तर देखें
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उत्तर :
व्याख्या :
Gum.
प्र: Atomic mass of first 30 elements? 980 05b5cc632e4d2b4197774b9d5
5b5cc632e4d2b4197774b9d5- उत्तर देखें
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उत्तर :
व्याख्या :
Here I give you the first 30 Atomic elements names and their Atomic masses. Atomic number Element Atomic mass 1 Hydrogen 1 2 Helium 4 3 Lithium 6.94 4 Beryllium 9.01 5 Boron 10.81 6 Carbon 12.01 7 Nitrogen 14.01 8 Oxygen 15.99 9 Fluorine 19.00 10 Neon 20.18 11 Sodium 22.99 12 Magnesium 25.31 13 Aluminium 26.98 14 Silicon 28.09 15 Phosphorus 30.97 16 Sulphur 32.07 17 Chlorine 35.45 18 Argon 39.95 19 Potassium 39.10 20 Calcium 40.08 21 Scandium 44.96 22 Titanium 47.87 23 Vanadium 50.94 24 Chromium 24. 52 25 Manganese 54.94 26 Iron 55.85 27 Cobalt 58.93 28 Nickel 58.69 29 Copper 63.55 30 Zinc 65.41
प्र: What type of bone is a phalanx? 1188 05b5cc632e4d2b4197774b9d0
5b5cc632e4d2b4197774b9d0- 1Short bonesfalse
- 2Jointsfalse
- 3Long bonestrue
- 4None of the abovefalse
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उत्तर : 3. "Long bones"
व्याख्या :
Answer: C) Long bones Explanation: The phalanges or a phalanx are/is digital bones in the hands and feet of most vertebrates. In primates, the thumbs and big toes have two phalanges while the other digits have three phalanges. The phalanges are classed as long bones.
प्र: Which one of the following elements is a transition element? 1052 05b5cc632e4d2b4197774b9cb
5b5cc632e4d2b4197774b9cb- 1Hfalse
- 2Asfalse
- 3Fetrue
- 4Srfalse
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उत्तर : 3. "Fe"
व्याख्या :
Answer: C) Fe Explanation: In chemistry, the term transition metal has three possible meanings: The IUPAC definition defines a transition metal as "an element whose atom has a partially filled d sub-shell, or which can give rise to cations with an incomplete d sub-shell". Any of the set of metallic elements occupying a central block (Groups IVB–VIII, IB, and IIB, or 4–12) in the periodic table, e.g. iron, manganese, chromium, and copper. Chemically they show variable valency and a strong tendency to form coordination compounds, and many of their compounds are coloured. Here in the given options, only iron (Fe) is a transition metal since Strontium is an alkaline earth, arsenic is a metalloid, hydrogen is (normally) a diatomic gas.
प्र: National Statistics day observed every year on 915 05b5cc632e4d2b4197774b9be
5b5cc632e4d2b4197774b9be- 120 Octoberfalse
- 220 Julyfalse
- 329 Junetrue
- 421 Septemberfalse
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उत्तर : 3. "29 June"
व्याख्या :
Answer: C) 29 June Explanation: National Statistics day is celebrated annually 29th June, on the occasion of Birth anniversary of India’s eminent statistician Late Prof Prasanta Chandra Mahalanobis. It also commemorates the contributions made by PC Mahalanobis in the fields of statistics and economic planning.