IIT JEE Practice Question and Answer

Q: In terms of territorial extent, the largest district of India is located in which of the following states ? 1846 0

  • 1
    Rajasthan
    Correct
    Wrong
  • 2
    Tamil Nadu
    Correct
    Wrong
  • 3
    Jammu & Kashmir
    Correct
    Wrong
  • 4
    Gujarat
    Correct
    Wrong
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Answer : 4. "Gujarat"
Explanation :

Answer: D) Gujarat Explanation: Kachchh district is the largest in India in terms of territorial extent, located in the state of Gujarat.The second largest district is Leh in Jammu & Kashmir.

Q: A standing wave occurs when 1846 0

  • 1
    a wave reflects upon itself
    Correct
    Wrong
  • 2
    the amplitude of a wave exceeds its wavelength
    Correct
    Wrong
  • 3
    two waves overlap
    Correct
    Wrong
  • 4
    the speed of the wave is zero or near zero
    Correct
    Wrong
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Answer : 1. "a wave reflects upon itself"
Explanation :

Answer: A) a wave reflects upon itself Explanation: A standing wave also known as a stationary wave, is a wave in which its peaks or any other point on the wave do not move spatially. This phenomenon can occur because the medium is moving in the opposite direction to the wave, or it can arise in a stationary medium as a result of interference between two waves traveling in opposite directions. The most common cause of standing waves is the phenomenon of resonance, in which standing waves occur inside a resonator due to interference between waves reflected back and forth at the resonator's resonant frequency.   Hence, standing wave occurs when a wave reflects upon itself.

Q: The more you take the more you leave behind. What is it? 1845 0

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Answer :
Explanation :

Footsteps.  Yes, as you walk forward, you will leave the footstep behind you.

Q: What will be added to the unit digits of the number 86236 so that number will be divisible by 9  ? 1845 0

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

Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

Q: Speeding is a factor in ___ % of fatal crashes. 1844 0

  • 1
    30
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 1. "30"
Explanation :

Answer: A) 30 Explanation: Speed has been identified as a key risk factor in road traffic injuries, influencing both the risk of a road crash as well as the severity of the injuries that result from crashes. Speeding is a factor in 30 % of all fatal accidents.

Q: A work which could be finished in 11 days was finished 4 days earlier after 4 more men joined. The number of men employed was ? 1844 0

  • 1
    7
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 1. "7"
Explanation :

Answer: A) 7 Explanation: As the work is sameM1D1 = M2D2 Here Let the number of men employed was M=> 11M = 7(M+4)=> 11M - 7M = 28=> M = 7

Q: Name the state that has become the first state to launch a special awareness drive to ensure that transgenders in the state register as voters. 1844 0

  • 1
    Tripura
    Correct
    Wrong
  • 2
    Mizoram
    Correct
    Wrong
  • 3
    Maharashtra
    Correct
    Wrong
  • 4
    Haryana
    Correct
    Wrong
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Answer : 3. "Maharashtra"
Explanation :

Answer: C) Maharashtra Explanation: Maharashtra has become the first state to launch a special awareness drive to ensure that transgender in the state register as voters in greater numbers.

Q: Chola Empire was divided into ____ 1843 0

  • 1
    Mandalams, Nadu, Avanti & Kurram
    Correct
    Wrong
  • 2
    Mandalams, Nadu, Malkhand & Kurram
    Correct
    Wrong
  • 3
    Avanti, Nadu, Malkhand & Kurram
    Correct
    Wrong
  • 4
    Mandalams, Nadu,Kurram & Valanadu
    Correct
    Wrong
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Answer : 4. "Mandalams, Nadu,Kurram & Valanadu"
Explanation :

Answer: D) Mandalams, Nadu,Kurram & Valanadu Explanation:

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