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NEET Test 201...

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  • Question 1
    4 / -1

    An infinite line charge produces a field of 9 × 104N/C at distance of 2 cm. Calculate the linear charge density.

  • Question 2
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    Electric charge q is uniformly distributed over a rod of length l. The rod is placed parallel to a long wire carrying a current i. The separation between the rod and the wire is a. Find the force needed to move the rod along its length with a uniform velocity v.

  • Question 3
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    The motor of an electric train can give it an acceleration of 1 m/s2 and its brakes can give it a negative acceleration of 3 m/s2. The shortest time in which the train can make a trip between two stations 1350 m apart is

  • Question 4
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    A greenish yellow gas is obtained by heating potassium dichromate with conc. hydrochloric acid. Which of the following options is wrong about the gas liberated here?

  • Question 5
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    "Molecular scissors" used in genetic engineering is:

  • Question 6
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    The difference between electron gain enthalpies will be maximum between:

  • Question 7
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    A solenoid of inductance L and resistance R is connected to a battery. The time taken for the magnetic energy to reach 1/4 of its maximum value is:

  • Question 8
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    A stone dropped from the top of a tower reaches ground in 4 s. Height of the tower is (g = 10 m/s2)

  • Question 9
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    Electrical conductivity of a semiconductor increases when em radiation of λ < 2480 nm is incident on it. The band gap in (ev) for the semiconductor is

  • Question 10
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    The compound, which has one isopropyl group is :

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