GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is ? 1661 05b5cc6ebe4d2b4197774ee64
5b5cc6ebe4d2b4197774ee64- 11false
- 21/2true
- 30false
- 43/5false
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उत्तर : 2. "1/2"
व्याख्या :
Answer: B) 1/2 Explanation: The number of exhaustive outcomes is 36.Let E be the event of getting an even number on one die and an odd number on the other. Let the event of getting either both even or both odd then = 18/36 = 1/2P(E) = 1 - 1/2 = 1/2.
प्र: Visible light has a higher frequency than 1660 05b5cc63de4d2b4197774bacf
5b5cc63de4d2b4197774bacf- 1Radio wavestrue
- 2X raysfalse
- 3Ultra violetfalse
- 4All the abovefalse
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उत्तर : 1. "Radio waves"
व्याख्या :
Answer: A) Radio waves Explanation: Radio waves have much longer wavelengths and lower frequencies than do visible light waves. In contrast, X-rays have much shorter wavelengths and higher frequencies. Ultraviolet Light (UV). part of the electromagnetic spectrum that consists of waves with frequencies higher than those of visible light and lower than those of x-rays.
प्र: How can we get 24 as an answer by using 6, 11, 3 and 9? 1660 05b5cc6a9e4d2b4197774cf1e
5b5cc6a9e4d2b4197774cf1e- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24. 2. [(9–6) x (11–3)] = 3 x 8 = 24.
प्र: What is formed by all the ecosystems of the earth? 1659 05b5cc69fe4d2b4197774ca2d
5b5cc69fe4d2b4197774ca2d- 1Biospheretrue
- 2Tropospherefalse
- 3Stratospherefalse
- 4Ionospherefalse
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उत्तर : 1. "Biosphere"
व्याख्या :
Answer: A) Biosphere Explanation: A biosphere is the sum of all the ecosystems established on planet Earth. An ecosystem is an area in which the plants and animals all interact to create a living environment. Therefore ecosystem is a smaller unit of earth, all ecosystems together form the earth.
प्र: The more you take away the larger it becomes. What is that? 1659 05b5cc63de4d2b4197774baff
5b5cc63de4d2b4197774baff- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A Hole. When you are digging a hole the more you take out the soil, the igger the hole becomes.
प्र: Study the question and all the three statements given and decide whether any information provided in the statements are redundand and can be dispensed with while answering the questions. Question : What is the rate of interest per year ? Statements : 1. The amount invested is Rs. 6000.2. The amount becomes Rs. 6741.60 in 2 years at compound interest.3. The difference between compound interest and simple interest in 2 years is Rs. 21.60. 1656 05b5cc6c5e4d2b4197774dd6e
5b5cc6c5e4d2b4197774dd6e- 1Only 3false
- 2Both 2 & 3false
- 3Any two of (1, 2 & 3)true
- 4Nonefalse
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उत्तर : 3. "Any two of (1, 2 & 3)"
व्याख्या :
Answer: C) Any two of (1, 2 & 3) Explanation: Using Both 1 & 2 statements we get the rate of interest as in (1) we have given principle amount and in (2) compound interest for 2 years. By this data we get the rate%. Using Both 1 & 3 statements we can get the rate% as we have principle amount & difference between compound interest and simple interest in 2 years. Using Both 2 & 3 statements we get compound interest & simple interest by which we get principle amount. So that we can calculate %rate. Hence by using any two of the three statements(1,2&3) we get rate of interest.
प्र: Atomic mass of first 30 elements? 1656 05b5cc632e4d2b4197774b9d5
5b5cc632e4d2b4197774b9d5- उत्तर देखेंउत्तर छिपाएं
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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: Name the two Indian companies that have been named in the list of world's most ethical companies by American think tank Ethisphere Institute. 1655 05b5cc715e4d2b4197774f440
5b5cc715e4d2b4197774f440- 1Dabur and Tatafalse
- 2Mahindra and Tatafalse
- 3Patanjali and Daburfalse
- 4Tata Steel and Wiprotrue
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उत्तर : 4. "Tata Steel and Wipro"
व्याख्या :
Answer: D) Tata Steel and Wipro Explanation: Two Indian companies, Tata SteelBSE and Wipro have been named in the list of world’s most ethical companies by American think tank Ethisphere Institute. Ethisphere honors those companies who recognize their role in society to influence and drive positive change in the business community and organizations around the world. In 2017, 124 honorees were spanning five continents, 19 countries, and 52 industry sectors. Wipro is one of the two information technology companies named in the list, the other being Xerox Corporation.

