IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Which action is the best example of a direct observation? 4837 05b5cc66de4d2b4197774bfaa
5b5cc66de4d2b4197774bfaa- 1listening to a cricket chirp at night and counting the number of chirps per minutetrue
- 2determining the seal population of an island by counting seals in 10 square meters of the islandfalse
- 3identifying which bird was present by the tracks that it leaves in the sand at a beachfalse
- 4reading numbers on a heat sensor to conclude that there is a deer in the night woodsfalse
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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 05b5cc731e4d2b4197774f7f6
5b5cc731e4d2b4197774f7f6- 1suppressing, conflicttrue
- 2expressing, hostilityfalse
- 3stifling, temperancefalse
- 4rousing, wrathfalse
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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 05b5cc705e4d2b4197774f1f3
5b5cc705e4d2b4197774f1f3- 19false
- 217true
- 311false
- 415false
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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
प्र: A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min he tells his father that his hat has fallen. So they turn round and are able to pick the hat at the point from where they began boating after 5min. Find the speed of river in miles/hours ? 4816 05b5cc711e4d2b4197774f3d7
5b5cc711e4d2b4197774f3d7- 14 mile/hrfalse
- 26 mile/hrtrue
- 32 mile/hrfalse
- 45 mile/hrfalse
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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 05b5cc71be4d2b4197774f512
5b5cc71be4d2b4197774f512- 1South-Easttrue
- 2North-Westfalse
- 3Eastfalse
- 4Westfalse
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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 05b5cc6b2e4d2b4197774d38d
5b5cc6b2e4d2b4197774d38d- 1Dayanand Saraswathifalse
- 2Sri Ramakrishnatrue
- 3Swamy Vivekanandafalse
- 4Raja Ram Mohan Royfalse
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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 05b5cc6a2e4d2b4197774cb66
5b5cc6a2e4d2b4197774cb66- 1Shakuntala Devitrue
- 2Raja Ramannafalse
- 3Rina Panigrahifalse
- 4Ramanujamfalse
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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 05b5cc6ebe4d2b4197774eeaf
5b5cc6ebe4d2b4197774eeaf- 1KMNLfalse
- 2JLMKfalse
- 3PRSQfalse
- 4VWYZtrue
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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.

