IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Which action is the best example of a direct observation? 4837 0

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    listening to a cricket chirp at night and counting the number of chirps per minute
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    गलत
  • 2
    determining the seal population of an island by counting seals in 10 square meters of the island
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  • 3
    identifying which bird was present by the tracks that it leaves in the sand at a beach
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  • 4
    reading numbers on a heat sensor to conclude that there is a deer in the night woods
    सही
    गलत
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उत्तर : 1. "listening to a cricket chirp at night and counting the number of chirps per minute"
व्याख्या :

Answer: A) listening to a cricket chirp at night and counting the number of chirps per minute Explanation:

प्र: I learnt from my experience that by______ my anger and resentment, and by avoiding _________ I could overcome opponents more successfully than could those who openly defied their adversaries. 4827 0

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    suppressing, conflict
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    गलत
  • 2
    expressing, hostility
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    गलत
  • 3
    stifling, temperance
    सही
    गलत
  • 4
    rousing, wrath
    सही
    गलत
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उत्तर : 1. "suppressing, conflict"
व्याख्या :

Answer: A) suppressing, conflict Explanation:

प्र: In a class of 39 students the ratio of boys and girls is 2 : 1. Radhika ranks 15th among all the students from top and 8th among girls from bottom. How many boys are there below Radhika ? 4825 0

  • 1
    9
    सही
    गलत
  • 2
    17
    सही
    गलत
  • 3
    11
    सही
    गलत
  • 4
    15
    सही
    गलत
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उत्तर : 2. "17"
व्याख्या :

Answer: B) 17 Explanation: Total student= 39, boys : girls = 2:1, hence no of boys= 2/3(39)= 26num of girls= 1/3(39) = 13 , since radhika ranked 15 among 39 student from topand ranked 8 among girls from bottom , this means 7 girls are below radhika, rest 13-9= 5 girls are above her, now from 14 toper 5 are girls hence 14-5=9 boys.Hence num of boys below radhika are 26-9=17

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उत्तर : 2. "6 mile/hr"
व्याख्या :

Answer: B) 6 mile/hr Explanation: Let the speed of river and boat be 'r' m/min and 'b' m/min.so relative speed in upstream (b-r)m/min and in downstream (b+r)m/min.Now in upstream distnce covered in 5 min is 5(b-r)milesso total distnce covered => 1 + 5(b-r)miles in upstreamIn downstream distance covered in 5min is 5(b+r)miles Now 1 + 5(b-r) = 5(b+r)1+5b-5r = 5b+5r1 = 10rr = 1/10 mile/min => 6 mile/hr.

प्र: If A x B means A is to the south of B; A + B means A is to the north of B; A % B means A is to the east of B; A - B means A is to the west of B; then in P % Q + R - S, S is in which direction with respect to Q ? 4806 0

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    South-East
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    गलत
  • 2
    North-West
    सही
    गलत
  • 3
    East
    सही
    गलत
  • 4
    West
    सही
    गलत
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उत्तर : 1. "South-East"
व्याख्या :

Answer: A) South-East Explanation: P % Q + R - S=> P is to the East of Q, who is to the North of R, who is to the West of S.=> Q.....P      R.....S=> With respect to Q, S is to the South-East of Q.

प्र: Prophet of New India is 4803 0

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    Dayanand Saraswathi
    सही
    गलत
  • 2
    Sri Ramakrishna
    सही
    गलत
  • 3
    Swamy Vivekananda
    सही
    गलत
  • 4
    Raja Ram Mohan Roy
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उत्तर : 2. "Sri Ramakrishna"
व्याख्या :

Answer: B) Sri Ramakrishna Explanation: Sri Ramakrishna is called as the Prophet of New India. Sri Ramakrishna (1836-86) mostly known as Ramakrishna Paramhamsa was a spiritual genius now respected in India and abroad as an outstanding saint of our times. His life and thoughts represents the highest and best of modern Hindu philosophy and practice. Reverence and admiration for him amongst Bengali elites led to the formation of the Ramakrishna Mission by his chief disciple Swami Vivekananda. His devotees look upon him as an incarnation or Avatara of the formless Supreme Brahman as described in the Vedanta while some devotees see him as an avatara of Vishnu.

प्र: The Indian to beat the computers in mathematical wizardry is 4774 0

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    Shakuntala Devi
    सही
    गलत
  • 2
    Raja Ramanna
    सही
    गलत
  • 3
    Rina Panigrahi
    सही
    गलत
  • 4
    Ramanujam
    सही
    गलत
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उत्तर : 1. "Shakuntala Devi"
व्याख्या :

Answer: A) Shakuntala Devi Explanation:

प्र: Find the one which does not belong to that group ? 4761 0

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    KMNL
    सही
    गलत
  • 2
    JLMK
    सही
    गलत
  • 3
    PRSQ
    सही
    गलत
  • 4
    VWYZ
    सही
    गलत
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उत्तर : 4. "VWYZ"
व्याख्या :

Answer: D) VWYZ Explanation: K+2 M+1 N-2 L,  P+2 R+1 S-2 Q,   V+1 W+2 Y+1 Z,   J+2 L+1 M-2 K  and  W+2 Y+1 Z-2 X. Except VWYZ, all the other groups follow similar pattern.

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