IIT JEE Practice Question and Answer
8Q: A jogger running at 9 km/hr along side a railway track is 260 m ahead of the engine of a 140 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger ? 1898 05b5cc6e5e4d2b4197774ed29
5b5cc6e5e4d2b4197774ed29- 125 secfalse
- 240 sectrue
- 338 secfalse
- 432 secfalse
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Answer : 2. "40 sec"
Explanation :
Answer: B) 40 sec Explanation: Speed of train relative to jogger = 45 - 9 = 36 km/hr.= 36 x 5/18 = 10 m/sec. Distance to be covered = 260 + 140 = 400 m. Time taken = 400/10 = 40 sec.
Q: Which choice best describes the polarity of BrF5? 1898 05b5cc62ce4d2b4197774b902
5b5cc62ce4d2b4197774b902- 1nonpolar bonds / nonpolar moleculefalse
- 2nonpolar bonds / polar moleculefalse
- 3polar bonds / polar moleculetrue
- 4polar bonds / nonpolar moleculefalse
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Answer : 3. "polar bonds / polar molecule"
Explanation :
Answer: C) polar bonds / polar molecule Explanation:
Q: What is Latus Rectum of Parabola? 1897 05b5cc6a0e4d2b4197774ca42
5b5cc6a0e4d2b4197774ca42- 1line segmenttrue
- 2vertexfalse
- 3focusfalse
- 4major axisfalse
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Answer : 1. "line segment"
Explanation :
Answer: A) line segment Explanation: As parabola is a locus of a point, which moves so that its distance from focus and directrix is always equal. The latus rectum of a conic section is the chord (line segment) that passes through the focus, is perpendicular to the major axis and has both endpoints on the curve. The length of the latus rectum is determined differently for each conic. The length of a parabola's latus rectum is 4p, where p is the distance from the focus to the vertex.
Q: GDPR means 1897 05b5cc670e4d2b4197774c020
5b5cc670e4d2b4197774c020- 1General Data Protection Regulationtrue
- 2Generic Data Per Randomfalse
- 3Generic Data Protection Regulationfalse
- 4Gross Data Protection Regulationfalse
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Answer : 1. "General Data Protection Regulation"
Explanation :
Answer: A) General Data Protection Regulation Explanation: GDPR stands for the General Data Protection Regulation. The GDPR is a piece of EU legislation passed by the European Parliament in 2016. It aims to make it simpler for people to control how companies use their personal details. Companies will not be allowed to collect and use personal information without the person's consent. Data includes things like a person's name, email address and phone number, and also internet browsing habits collected by website cookies.
Q: What is the functional unit of a skeletal muscle called? 1897 05b5cc690e4d2b4197774c41d
5b5cc690e4d2b4197774c41d- 1Myofibrilfalse
- 2Sarcomeretrue
- 3Fiberfalse
- 4Fasciculusfalse
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Answer : 2. "Sarcomere"
Explanation :
Answer: B) Sarcomere Explanation: The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the skeletal muscle.
Q: A hybrid of a donkey and a horse 1897 05b5cc690e4d2b4197774c465
5b5cc690e4d2b4197774c465- 1Panthera and Mulefalse
- 2Mules and Hinnystrue
- 3Liger and Hinnysfalse
- 4Wholphin and Mulefalse
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Answer : 2. "Mules and Hinnys"
Explanation :
Answer: B) Mules and Hinnys Explanation: Donkeys and horses can be breed to make mules and hinnys. A hinny is a domestic equine hybrid that is the offspring of a male horse, a stallion, and a female donkey, a jenny. It is the reciprocal cross to the more common mule, which is the product of a male donkey, a jack, and a female horse, a mare.
Q: Crack the Logical #MathPuzzle? 1897 05b5cc6bbe4d2b4197774d839
5b5cc6bbe4d2b4197774d839- Show AnswerHide Answer
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Answer :
Explanation :
From given data, Rs. 1 = 40 strawberries => Rs. 2 = 80 strawberries Rs. 5 = 1 apple => Rs. 95 = 19 apple. Rs. 3 = 1 mango => Rs. 3 = 1, mango Now, Total So 100 Rs = 100 Fruits.
Q: Number Challenge 1897 05b5cc6d3e4d2b4197774e4f0
5b5cc6d3e4d2b4197774e4f0- 19false
- 211true
- 313false
- 415false
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Answer : 2. "11"
Explanation :
Answer: B) 11 Explanation: Half the Product of Number in the upper & lower box gives the number in the middle box. i.e. 18 x 4/2 = 36 15 x 6/2 = 45 In the same way 8 x N/2 = 44 => N = 11.

