IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What is the number that should come in the place of question mark ? 1050 420 168 67.2 ? 1036 05b5cc741e4d2b4197774f9c2
5b5cc741e4d2b4197774f9c2- 119.11false
- 214.25false
- 310.752false
- 426.88true
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उत्तर : 4. "26.88"
व्याख्या :
Answer: D) 26.88 Explanation: Given series follows the rule of 1050/2.5 = 420420/2.5 = 168168/2.5 = 67.2so 67.2/2.5 = 26.88
प्र: Simplify 413 + 215 + 414 = ? 1035 05b5cc6afe4d2b4197774d235
5b5cc6afe4d2b4197774d235- 110 47/60true
- 211 45/73false
- 311 47/36false
- 410 35/48false
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उत्तर : 1. "10 47/60"
व्याख्या :
Answer: A) 10 47/60 Explanation: The given equation is in Mixed fraction. Now to solve this type of fractions, 413 + 215 + 414 =?? = 4 + 2 + 4 + 13 + 15 + 14 ? = 10 + 4760? = 104760
प्र: How many laws of physics are there? 1032 05b5cc6aae4d2b4197774cf3d
5b5cc6aae4d2b4197774cf3d- 15false
- 24false
- 33true
- 42false
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उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation: Physics has 5 laws. But the 3 laws of Newton has been clubbed together under one Law. Therefore there are 3 Newtons laws of Physics. They are :: 1. Newtons Laws of Motion a. First Law of Motion b. Second Law of Motion C. Third Law of Motion 2. Newtons Law of Cooling 3. Newtons Law of Gravitation.
प्र: 54, 60 LCM is 1032 05b5cc6bce4d2b4197774d891
5b5cc6bce4d2b4197774d891- 1600false
- 2540true
- 360false
- 454false
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उत्तर : 2. "540"
व्याख्या :
Answer: B) 540 Explanation: Here the LCM of 54, 60 is => 2 x 3 x 3 x 3 x 10 = 6 x 9 x 10 = 54 x 10 = 540.
प्र: Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train? 1032 05b5cc6bee4d2b4197774d97e
5b5cc6bee4d2b4197774d97e- 127 7/9 mtstrue
- 225 8/7 mtsfalse
- 321 1/4 mtsfalse
- 422 mtsfalse
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उत्तर : 1. "27 7/9 mts"
व्याख्या :
Answer: A) 27 7/9 mts Explanation: Relative speed = (40 - 20) km/hr = 20 x 5 m/sec = 50 m/sec. 18 9 Length of faster train = 50 x 5 m = 250 m = 27 7 m. 9 9 9
प्र: The 'IFSC Code' is an alphanumeric code comprising 11 characters that facilitates Electronic Fund Transfer in the country. The alphabet 'F' in the abbreviation 'IFSC' stands for ? 1031 05b5cc6cbe4d2b4197774e103
5b5cc6cbe4d2b4197774e103- 1Fundfalse
- 2Fastfalse
- 3Financialtrue
- 4Firstfalse
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उत्तर : 3. "Financial"
व्याख्या :
Answer: C) Financial Explanation: IFSC stands for - Indian Financial System Code. This is a code uniquely identifies each bank branch participating in the two main Payment and settlement systems in India : 1. RTGS - The Real Time Gross Settlement (and) 2. NEFT - The National Electronic Fund Transfer (NEFT) systems.
प्र: What part of the atom has a positive charge? 1031 05b5cc694e4d2b4197774c4c6
5b5cc694e4d2b4197774c4c6- 1Neutronfalse
- 2Protontrue
- 3Electronfalse
- 4All the abovefalse
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उत्तर : 2. "Proton"
व्याख्या :
Answer: B) Proton Explanation: Protons carry a positive electrical charge, electrons carry a negative electrical charge and neutrons carry no electrical charge at all. The protons and neutrons cluster together in the central part of the atom, called the nucleus, and the electrons 'orbit' the nucleus.
प्र: "The Law of Kepler" is related with which among the following ? 1030 05b5cc6bfe4d2b4197774da38
5b5cc6bfe4d2b4197774da38- 1Planetary Motiontrue
- 2Law of Conservation of energyfalse
- 3Law of Gravitationfalse
- 4Nonefalse
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उत्तर : 1. "Planetary Motion"
व्याख्या :
Answer: A) Planetary Motion Explanation: Kepler's laws of planetary motion are three scientific laws describing the motion of planets around the Sun. Kepler’s three laws of planetary motion can be stated as follows: (1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time. (3) The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.