IIT JEE Practice Question and Answer

Q: Choose the missing terms in the given series from the four alternatives given below. C, E, G, J, M, Q, ? 1853 0

  • 1
    T
    Correct
    Wrong
  • 2
    U
    Correct
    Wrong
  • 3
    P
    Correct
    Wrong
  • 4
    V
    Correct
    Wrong
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Answer : 2. "U"
Explanation :

Answer: B) U Explanation: The letters move 2, 2, 3, 3, 4, 4, ... steps forward.

Q: Which of the following describes loyalists? 1852 0

  • 1
    They thought Patriots were too radical
    Correct
    Wrong
  • 2
    They decided to fight against the British
    Correct
    Wrong
  • 3
    They wanted to return to Britain
    Correct
    Wrong
  • 4
    They supported British taxation
    Correct
    Wrong
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Answer : 1. "They thought Patriots were too radical"
Explanation :

Answer: A) They thought Patriots were too radical Explanation: They thought Patriots were too radical is the statement which describes loyalists correctly.

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Answer :
Explanation :

That 8 letter word is Whatsapp (a messenger app) First four letters:   WHAT a question Letters 2,3,4:     HAT protects our headLetters 5,6,7:   SAP an IT companyLetters 7,8:    PP same.

Q: Mirage is an example of 1849 0

  • 1
    Reflection of light & Refraction of light
    Correct
    Wrong
  • 2
    Dispersion of light
    Correct
    Wrong
  • 3
    Total Internal Reflection
    Correct
    Wrong
  • 4
    Refraction of light & Total Internal Reflection of light
    Correct
    Wrong
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Answer : 4. "Refraction of light & Total Internal Reflection of light"
Explanation :

Answer: D) Refraction of light & Total Internal Reflection of light Explanation: A Mirage is a naturally occurring optical phenomenon in which light rays bend to produce a displaced image of distant objects or the sky. It is caused due to Total internal Reflection. It is an optical illusion observed in deserts or hot summer days due to which a person sees a pond of water some distance ahead of him in which the surrounding objects appear inverted. How Mirage Forms:: 1. The temperature of other layers of atmosphere goes on decreasing as we go up.2. Therefore density and refractive index of air changes as one goes up.3. Thus a ray of light,gets refracted more and more away from the normal.4. At a particular angle when a ray of light exceeds critical angle, total internal reflection takes place and ray of light gets reflected in the same medium.5. when the reflected ray reaches our eye, it appears as coming from tree or sky .6. Hence the inverted image of tree creates an impression from a pond of water.

Q: After working for 8 days, Hari Ram finds that only 1/3 rd of the work has been done. He employs Satya who is 60% as efficient as Hari Ram. How many days more would Satya take to complete the work ? 1849 0

  • 1
    24 1/2 days
    Correct
    Wrong
  • 2
    25 3/2 days
    Correct
    Wrong
  • 3
    24 2/3 days
    Correct
    Wrong
  • 4
    26 2/3 days
    Correct
    Wrong
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Answer : 4. "26 2/3 days"
Explanation :

Answer: D) 26 2/3 days Explanation: 1/3 ---- 8 1 -------? Hari can do total work in = 24 days As satya is 60% efficient as Hari, then Satya = 1/24 x 60/100 = 1/40 => Satya can do total work in 40 days 1 ----- 40 2/3 ---- ? => 26 2/3 days.

Q: Which statement best describes electrons? 1848 0

  • 1
    Electrons orbit around the nucleus
    Correct
    Wrong
  • 2
    Electrons are composed of protons and neutrons
    Correct
    Wrong
  • 3
    Electrons reside in the nucleus
    Correct
    Wrong
  • 4
    Electrons have a positive charge
    Correct
    Wrong
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Answer : 1. "Electrons orbit around the nucleus"
Explanation :

Answer: A) Electrons orbit around the nucleus Explanation: Electrons orbit around the nucleus is correct about them.

Q: A Disease which spreads by contact? 1847 1

  • 1
    Infectious
    Correct
    Wrong
  • 2
    Fatal
    Correct
    Wrong
  • 3
    Incurable
    Correct
    Wrong
  • 4
    Contagious
    Correct
    Wrong
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Answer : 4. "Contagious"
Explanation :

Answer: D) Contagious Explanation: A Disease which spreads by contact are Contagious. Infectious diseases : These are caused by microscopic germs such as bacteria or viruses that get into the body and cause problems. Some but not all infectious diseases spread directly from one person to another. Infectious diseases that spread from person to person are said to be contagious. Some infections spread to people from an animal or insect, but are not contagious from another human.  Contagious diseases such as the flu, colds, or strep throat spread from person to person in several ways. One way is through direct physical contact, like touching or kissing a person who has the infection. Another way is when an infectious microbe travels through the air after someone nearby sneezes or coughs. Fatal Diseases : Diseases leading to failure or disaster. Incurable Diseases : Diseases of a sick person not able to be cured.

Q: Who is the author of the book "Panditharadya Charitham" ? 1847 0

  • 1
    Tikkana
    Correct
    Wrong
  • 2
    Ganapathideva
    Correct
    Wrong
  • 3
    Yerrana
    Correct
    Wrong
  • 4
    Palkuriki Somanatha
    Correct
    Wrong
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Answer : 4. "Palkuriki Somanatha"
Explanation :

Answer: D) Palkuriki Somanatha Explanation:

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