IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: The first Law Officer of the Government of India is the 4250 0

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    Union Law Minister
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    Secreatary, Ministry of Law
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    Attorney-General for India
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    Chief Justice of the Supreme Court
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उत्तर : 3. "Attorney-General for India"
व्याख्या :

Answer: C) Attorney-General for India Explanation: Attorney-General for India is the  first Law Officer of the Government of India. He is is the Indian government's chief legal advisor, and its primary lawyer in the Supreme Court of India. The Solicitor General of India is below the Attorney General for India, who is the secondary law officer of the country, assists the Attorney General, and is himself assisted by several Additional Solicitors General of India.

प्र: Thread is to String as Cask is to 4241 0

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    Barrel
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    Disc
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    Wallet
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    Box
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उत्तर : 1. "Barrel"
व्याख्या :

Answer: A) Barrel Explanation: Here Thread and String are Synonyms of each other. Then the answer will be the synonym of Cask.  Cask is nothing but a large barrel-like container used for storing liquids, typically alcoholic drinks.  Ex : Drum, Vessel, Tank, Barrel, Hogshead, Firkin,...   Here from the options Barrel is the only synonym of Cask.   Thus,  Thread : String :: Cask : Barrel

प्र: Two trains of equal length, running with the speeds of 60 and 40 kmph, take 50 seconds to cross each other while they are running in the same direction. What time will they take to cross each other if they are running in opposite directions  ? 4240 0

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    10 sec
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    11 sec
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    12 sec
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    8 sec
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उत्तर : 1. "10 sec"
व्याख्या :

Answer: A) 10 sec Explanation: Relative Speed = 60 -40 = 20 x 5/18 = 100/18 Time = 50 Distance = 50 x 100/18 = 2500/9 Relative Speed = 60 + 40 = 100 x 5/18 Time = 2500/9 x 18/500 = 10 sec.

प्र: Man : Biography :: Nation : ? 4238 0

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    History
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    Leader
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    Story
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    Nationalism
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उत्तर : 1. "History"
व्याख्या :

Answer: A) History Explanation: Detailed description of a man's life is Biography. Similarly, detailed description of a Nations is called History.

प्र: Which supercomputer is developed by the Indian Scientists? 4236 0

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    Super 3
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    Param 808
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    Super 149
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    Param 8000
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उत्तर : 4. "Param 8000"
व्याख्या :

Answer: D) Param 8000 Explanation: PARAM 8000 was was the first supercomputer developed by Indian scientists launched on July 01, 1991 is considered India's first supercomputer.   It was indigenously built in 1991 by Centre for Development of Advanced Computing and was replicated and installed at ICAD Moscow in 1991 under Russian collaboration.

प्र: Which best describes how air moves during convection? 4232 0

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    cool air falls down
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    warm air falls down
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    cool air is replaced by warm air
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    air always falls down
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उत्तर : 1. "cool air falls down"
व्याख्या :

Answer: A) cool air falls down Explanation: During convection, cool and dense air falls through the warmer and less dense air. The warm air having less mass is being displaced by the cooler which is much heavy. Convection always involves the air rising through the atmosphere.

प्र: A company requires 12,100 strength. Present employees are 400 ladies and 6400 gents. To reach the target how many ladies required to maintain the same ratio ? 4228 0

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    400
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    600
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    900
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    700
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उत्तर : 3. "900"
व्याख्या :

Answer: C) 900 Explanation: 6,400 gents, 2400 ladies in that company.So total 8,800employees.for 8,800 employees, we want 2400 ladies.for 12,100employees we want how many ladies ?=> (12,100/8,800) x 2400 = 3300.So we want 3300 - 2400 = 900 more ladies.

प्र: In an objective competitive exam, a correct answer score 4 marks and on a wrong answer 2 marks are negatively added. A student scores 420 marks from 150 question. How many answers were correct ? 4220 0

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    145
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    138
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    125
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    120
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उत्तर : 4. "120"
व्याख्या :

Answer: D) 120 Explanation: let x be the correct answer and y be the wrong answerso the total number of questions is (x + y) = 150.....(1)=> 4x - 2y = 420.....(2)By solving (1) & (2), we get => 6x = 720hence x = 120Therefore, number of correct answers are 120.

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