IIT JEE Practice Question and Answer

Q: Impulse conduction is fastest in neurons that are 2546 0

  • 1
    Myelinated
    Correct
    Wrong
  • 2
    Motor
    Correct
    Wrong
  • 3
    Unmyelinated
    Correct
    Wrong
  • 4
    Sensory
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Myelinated"
Explanation :

Answer: A) Myelinated Explanation: A myelinated nerve can be found int the brain or spinal cord as well as the peripheral nervous system, it is white and is surrounded by schwann cells or oligodendrocytes.

Q: In general, which is the cause of a land breeze? 1635 0

  • 1
    Pressure
    Correct
    Wrong
  • 2
    Heat
    Correct
    Wrong
  • 3
    Temperature
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Temperature"
Explanation :

Answer: C) Temperature Explanation: The land breeze is a coastal breeze at night blowing from the land to the ocean. It is caused by the difference in the rates of cooling of the land and of the ocean. Once again, the bigger the difference in temperature between the two, the stronger the wind.

Q: 9 tens 10 ones equals 2466 0

  • 1
    910
    Correct
    Wrong
  • 2
    90
    Correct
    Wrong
  • 3
    91
    Correct
    Wrong
  • 4
    100
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "100"
Explanation :

Answer: D) 100 Explanation: 9 tens 10 ones equals => 9 x 10 + 10 x 1 => 90 + 10 => 100.

Q: 7 C in the R? 1697 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

The given letter equation implies that,   7 C in the R = 7 Colours in a Rainbow.

Q: I have a face but no eyes Puzzle 1314 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

A Clock has a face, but no eyes. It has 3 hands i.e, hours, minutes and seconds hands but no arms.

Q: The oldest form of composition of Hindustan Vocal music is 1722 1

  • 1
    Thumri
    Correct
    Wrong
  • 2
    Ghazal
    Correct
    Wrong
  • 3
    Dhrupad
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Dhrupad"
Explanation :

Answer: C) Dhrupad Explanation:

Q: Waksman got the noble prize for the discovery of 1576 0

  • 1
    Streptomycin
    Correct
    Wrong
  • 2
    Chloromycetin
    Correct
    Wrong
  • 3
    Pencillin
    Correct
    Wrong
  • 4
    Neomycin
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

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: Two bottles contains mixture of milk and water. First bottle contains 64% milk and second bottle contains 26% water. In what ratio these two mixtures are mixed so that new mixture contains 68% milk? 2190 0

  • 1
    3 : 2
    Correct
    Wrong
  • 2
    2 : 1
    Correct
    Wrong
  • 3
    1 : 2
    Correct
    Wrong
  • 4
    2 : 3
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "3 : 2"
Explanation :

Answer: A) 3 : 2 Explanation: % of milk in first bottle = 64% % of milk in second bottle = 100 - 26 = 74% Now, ATQ   64%            74%                   68%   6                    4   Hence, by using allegation method,   Required ratio = 3 : 2

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully