IIT JEE Practice Question and Answer

Q: How many spaces are required between punctuation? 1686 0

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    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 1. "1"
Explanation :

Answer: A) 1 Explanation: While using punctuations, only one space is used.

Q: Which online security campaign has been launched by Google India to safeguard internet users? 1686 0

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    #SecurityCheckKiya
    Correct
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    #InternetSafetyKiya
    Correct
    Wrong
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    #OnlineSecurityKiya
    Correct
    Wrong
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    #SecureInternetKiya
    Correct
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Answer : 1. "#SecurityCheckKiya"
Explanation :

Answer: A) #SecurityCheckKiya Explanation: Google has launched new online security campaign #SecurityCheckKiya in India to promote security awareness among general public. The purpose of the campaign is to protect young and first-time web users from account hijacking, safeguard Android devices from malicious apps and secure all their personal data if they lose their device.

Q: The rate of change of linear momentum of a body falling freely under gravity is equal to it's ____ ? 1686 0

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    Kinetic Energy
    Correct
    Wrong
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    Weight
    Correct
    Wrong
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    Potential Energy
    Correct
    Wrong
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    Impulse
    Correct
    Wrong
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Answer : 2. "Weight"
Explanation :

Answer: B) Weight Explanation: Rate of change of impulse equals the force . In case of freely falling body the only force is the weight.

Q: Most abundant tissue in the body 1686 0

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    Connective
    Correct
    Wrong
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    Nervous
    Correct
    Wrong
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    Muscular
    Correct
    Wrong
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    Epithelial
    Correct
    Wrong
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Answer : 1. "Connective"
Explanation :

Answer: A) Connective Explanation: There are four types of tissue in human body. They are    1.Muscular2.Connective3.Epithelial4.Nervous   Among these Connective Tissue are most abundant in our body.    CONNECTIVE TISSUE   Functions:   1) Wraps around and cushions and protects organs2) Stores nutrients3) Internal support for organs4) As tendon and ligaments protects joints and attached muscles to bone and each other5) Runs through organ capsules and in deep layers of skin giving strength   The 3 Elements of Connective Tissue:1) Ground substance – gel around cells and fibers2) Fibers – provide strength, elasticity and support3) Cells   There are 2 Kinds of Connective Tissue:   1) Loose Connective Tissue: a) Areolar Connective Tissue – cushion around organs, loose arrangement of cells and fibers. b) Adipose Tissue – storehouse for nutrients, packed with cells and blood vessels c) Reticular Connective Tissue – internal supporting framework of some organs, delicate network of fibersand cells   2) Dense Connective Tissue: a) Dense Regular Connective Tissue – tendons and ligaments, regularly arranged bundles packed with fibersrunning same way for strength in one direction. b) Dense Irregular Connective Tissue – skin, organ capsules, irregularly arranged bundles packed with fibersfor strength in all directions.

Q: A & B invest Rs. 1,16,000 & 1,44,000 respectively. B invests for 6 months. At the end of the year, B’s share is Rs. 9000, find the overall profit? 1686 0

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    Rs. 23,500
    Correct
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    Rs. 19,780
    Correct
    Wrong
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    Rs. 21,700
    Correct
    Wrong
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    Rs. 20,050
    Correct
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Answer : 1. "Rs. 23,500"
Explanation :

Answer: A) Rs. 23,500 Explanation: Given A & B in partnership A Invests 116000 for 12 months  => A's share = 116000 x 12 = 13,92,000 B Invests for 6 months => B's share = 144000 x 6 = 8,64,000 Their Ratio = 1392 : 864 = 29 : 18 Let the Annual profit = P Given B's share = Rs. 9000 => 18/47 x P = 9000 => P = 9000 x 47/18 => P = 23,500 Hence, Overall profit = P = Rs. 23,500

Q: Waksman got the noble prize for the discovery of 1685 0

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    Streptomycin
    Correct
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    Chloromycetin
    Correct
    Wrong
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    Pencillin
    Correct
    Wrong
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    Neomycin
    Correct
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Answer : 1. "Streptomycin"
Explanation :

Answer: A) Streptomycin Explanation: In 1952, Waksman was awarded the Nobel Prize in Physiology or Medicine in recognition "for his discovery of streptomycin," the first antibiotic active against tuberculosis.

Q: Energy is measured in units called 1685 0

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    Newtons
    Correct
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    Watts
    Correct
    Wrong
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    Joules
    Correct
    Wrong
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    Ohm/mtr
    Correct
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Answer : 3. "Joules"
Explanation :

Answer: C) Joules Explanation: Energy is measured in units called Joules.   Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.   1 Joule  =  107 ergs or 0.7377 foot-pounds.

Q: Which of the following is a compound sentence? 1684 0

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    We can go see a movie, or we can get something to eat.
    Correct
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    When you get there, please remember to call me.
    Correct
    Wrong
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    Mohan bought some new shoes and wore them to a party.
    Correct
    Wrong
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    None of the above
    Correct
    Wrong
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Answer : 1. "We can go see a movie, or we can get something to eat."
Explanation :

Answer: A) We can go see a movie, or we can get something to eat. Explanation: A compound sentence is a sentence that has at least two independent clauses joined by a comma, semicolon or conjunction. An independent clause is a clause that has a subject and verb and forms a complete thought. Here except option A) other two options dependent.   Hence, A) We can go see a movie, or we can get something to eat is a compound sentence.

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