IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Which is the best definition of Federalism? 1968 0

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    Federalism encourages the practice of direct democracy at the state level rather than the national level.
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  • 2
    The quality of federal supremacy in government.
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  • 3
    A happy combination of mixed government.
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  • 4
    Federalism enables the state and the national government to share power.
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उत्तर : 4. "Federalism enables the state and the national government to share power."
व्याख्या :

Answer: D) Federalism enables the state and the national government to share power. Explanation: Federalism :: Federalism is a system based upon democratic rules and institutions in which the power to govern is shared between national and provincial/state governments, creating what is often called a federation.   Federalism is a political concept in which a group of members are bound together with a governing representative head.  Federalism enables the state and the national government to share power.

प्र: Today is Varun's birthday. One year, from today he will be twice as old as he was 12 years ago. How old is Varun today ? 1967 0

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    25 years
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  • 2
    24 years
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  • 3
    23 years
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  • 4
    22 years
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उत्तर : 1. "25 years"
व्याख्या :

Answer: A) 25 years Explanation: Let varun's age = x yrs. From the given conditions, x+1  =  2(x-12) x = 25 years.

प्र: In a party there are male and female members. If 15 female quit then the number of females will become double the number of males. If 45 males quit no. of female becomes five times the number of males. Find the number of females ? 1967 0

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    175
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  • 2
    145
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  • 3
    165
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  • 4
    135
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उत्तर : 1. "175"
व्याख्या :

Answer: A) 175 Explanation: Let the number of males be 'M'Let the number of females be 'F'From the given conditions,(F-15)=2M.....(i)F=5(M-45).....(ii)By solving the equations (1) & (2) we get M = 80 Then substitute M = 80 in (1)F = 2M + 15F = 2 x 80 + 15=> F = 175Therefore, number of males = 80 and females = 175 in the party.

प्र: What is harder to catch the faster you run? 1962 0

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    Breathe
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  • 2
    Fire
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  • 3
    Water
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  • 4
    Time
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उत्तर : 1. "Breathe"
व्याख्या :

Answer: A) Breathe Explanation: It is very hard to catch breathe when you run fast.

प्र: Lightning heats the surrounding air to 1961 0

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    300 deg Cent
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  • 2
    3000 deg Cent
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  • 3
    30000 deg Cent
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  • 4
    300000 deg Cent
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उत्तर : 3. "30000 deg Cent"
व्याख्या :

Answer: C) 30000 deg Cent Explanation: Lightning is extremely hot — a flash can heat the air around it to temperatures five times hotter than the sun’s surface. This heat causes surrounding air to rapidly expand and vibrate, which creates the pealing thunder we hear a short time after seeing a lightning flash. Lightning heats the surrounding air to about 30,000 degrees Centigrades.

प्र: What is the Iupac name for the compound shown below. 1961 0

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    1-Bromo-3-chlorocyclohexene
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  • 2
    2-Bromo-6-chlorocyclohex-1-ene
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  • 3
    6-Bromo-2-chlorocyclohexene
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  • 4
    3-Bromo-1-chlorocyclohex-1-ene
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उत्तर : 4. "3-Bromo-1-chlorocyclohex-1-ene"
व्याख्या :

Answer: D) 3-Bromo-1-chlorocyclohex-1-ene Explanation: In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a systematic method of naming organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

प्र: What profit percent is made by selling an article at a certain price, if by selling at 2/3rd of that price, there would be a loss of 20%   ? 1960 0

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    30 %
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  • 2
    25 %
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  • 3
    15 %
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  • 4
    20 %
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उत्तर : 4. "20 %"
व्याख्या :

Answer: D) 20 % Explanation: SP2 = 2/3 SP1CP = 100SP2 = 802/3 SP1 = 80 SP1 = 120100 --- 20   => 20%

प्र: Galileo was an Italian Astronomer who 1960 0

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    Discovered 4 satellites of Mars
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    Developed the Telescope
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    Discovered that the movement of pendulum produces a regular time measurement
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  • 4
    Both B & C
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उत्तर : 4. "Both B & C"
व्याख्या :

Answer: D) Both B & C Explanation: Galileo Galilei (1564-1642) was an Italian Astronomer who        1) Discovered 4 satellites of Jupiter 2) Developed Telescope   3) Discovered that the movement of pendulum produces a regular time measurement He is Physicist, Mathematician, inventor, and philosopher Too.

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