IIT JEE Practice Question and Answer

Q: "Compounding frequency" refers to 2712 0

  • 1
    What type of interest your account earns
    Correct
    Wrong
  • 2
    How often your interest is calculated and added back into your account
    Correct
    Wrong
  • 3
    What interest rate you can expect from your account
    Correct
    Wrong
  • 4
    How easily you can add money into your account
    Correct
    Wrong
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Answer : 2. "How often your interest is calculated and added back into your account"
Explanation :

Answer: B) How often your interest is calculated and added back into your account Explanation: Compounding frequency : The time periods when interest will be calculated on top of the original loan amount (or) The number of compounding periods in one year.   The greater the compounding frequency, the more often your interest is calculated and added back into your account.

Q: What is better, to have 70% discount or 40 and 30% discount consequently ? 2710 0

  • 1
    40% is better
    Correct
    Wrong
  • 2
    70% is better
    Correct
    Wrong
  • 3
    Both are same
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "70% is better"
Explanation :

Answer: B) 70% is better Explanation: Let Price be Rs.100 1st CASE: Then 100 x 70/100 = 70=> price after discount = 100-70 = Rs.30 2nd CASE: Then 100 x 40/100 = 40=> price after discount = 100-40 = Rs.60then60 x 30/100 = 18=> price after 2 consequent discount = 60-18 = Rs.42 =>from 1 and 2 cases, 70% discount is better.

Q: The Length of the Day is determined in 2710 0

  • 1
    length of the hours
    Correct
    Wrong
  • 2
    length of the year
    Correct
    Wrong
  • 3
    astronomical units
    Correct
    Wrong
  • 4
    solar terms
    Correct
    Wrong
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Answer : 3. "astronomical units"
Explanation :

Answer: C) astronomical units Explanation: The Length of the Day is determined in Astronomical Units. The length of a day corresponds to the time the Earth takes to turn around on its axis, which is approximately 24 hours. But it's not exactly 24 hours.  This phenomenon is due to tides raised by the Moon which slow Earth's rotation. Because of the way the second is defined, the mean length of a day is now about 86 400.002 seconds, and is increasing by about 1.7 milliseconds per century.

Q: Which one of the following is used to induce artificial rain ? 2710 0

  • 1
    Potassium Nitrate
    Correct
    Wrong
  • 2
    Ammonium chloride
    Correct
    Wrong
  • 3
    Calcium carbonate
    Correct
    Wrong
  • 4
    Silver lodide
    Correct
    Wrong
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Answer : 4. "Silver lodide"
Explanation :

Answer: D) Silver lodide Explanation:

Q: Given that on 9th August 2016 is Saturday. What was the day on 9th August 1616 ? 2709 0

  • 1
    Saturday
    Correct
    Wrong
  • 2
    Sunday
    Correct
    Wrong
  • 3
    Friday
    Correct
    Wrong
  • 4
    Monday
    Correct
    Wrong
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Answer : 1. "Saturday"
Explanation :

Answer: A) Saturday Explanation: We know that, After every 400 years, the same day occurs.Thus, if 9th August 2016 is Saturday, before 400 years i.e., on 9th August 1616 has to be Saturday.

Q: An area of dead myocardial tissue is called 2707 0

  • 1
    an infarct
    Correct
    Wrong
  • 2
    stenosis
    Correct
    Wrong
  • 3
    an induration
    Correct
    Wrong
  • 4
    hypertrophy
    Correct
    Wrong
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Answer : 1. "an infarct"
Explanation :

Answer: A) an infarct Explanation: An area of dead myocardial tissue is called an infarct.

Q: Find the next number in the given series ? 3, 7, 6, 5, 9, 3, 12, 1, 15, . . . 2706 0

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

Answer: D) -1 Explanation: 3, 7, 6, 5, 9, 3, 12, 1, 15, ... has two different series 1) 3, 6, 9, 12, 15..... 2) 7, 5, 3, 1, ..... -1 is the next number.

Q: Which 'Water Body' separates Andaman and Nicobar Islands ? 2705 0

  • 1
    Eleventh Degree Channel
    Correct
    Wrong
  • 2
    Andaman Sea
    Correct
    Wrong
  • 3
    Bay of Bengal
    Correct
    Wrong
  • 4
    Ten Degree Channel
    Correct
    Wrong
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Answer : 4. "Ten Degree Channel"
Explanation :

Answer: D) Ten Degree Channel Explanation:

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