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JEE Advanced Ph...

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  • Question 1
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    In the circuit shown C1 = 2C2. Switch S is closed at time t = 0. Let i1 & ibe the current flowing through Cand C2 at any time t, then the ratio I1/I2

  • Question 2
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    The capacitor of an oscillatory circuit of frequency 104Hz is enclosed in a container. When the container is evacuated, the frequency changes by 50 Hz, the dielectric constant of the gas is

  • Question 3
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    A current carrying wire is placed in the grooves of an insulating semicircular disc of radius ‘R’ as shown. The current enters atpoint A and leaves point B. Determine the magnetic field at point D.

  • Question 4
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    The organ pipes, both closed at one end, have lengths ℓ and ( ℓ + Δ ℓ) vibrates in fundamental mode. Neglect end correction. If the velocity of sound in air is v, then the number of beats/sec is (assume Δ ℓ << ℓ)

  • Question 5
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    Light is incident normally on face AB of a prism as shown. Aliquid of refractive index μ is placed on face AC of the prism.The prism is made of glass of refractive index 3/2. The limit of μ for which total internal reflection takes place on face AC is 

  • Question 6
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    Figure shows variation of magnification m(produced by a thin convexlens) and distance v of image from pole of the lens. Which of the following statements are correct?

  • Question 7
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    Directions For Questions

    A certain substance has a mass of 50g/mol. When 300J of heat is added to 25 gm of sample of this material, its temperature rises from 25 to 45oC.

    ...view full instructions

    The specific heat capacity of the substance is

  • Question 8
    4 / -1

    Directions For Questions

    A certain substance has a mass of 50g/mol. When 300J of heat is added to 25 gm of sample of thismaterial, its temperature rises from 25 to 45oC.

    ...view full instructions

    The molar heat capacity of the substance is

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