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  1. The correct answer is: (a) An upland that separates two drainage basins ✅ Explanation: Water Divide (also called Drainage Divide): A water divide is a geographical feature like a ridge, hill, or mountain that separates two drainage basins. It determines the direction in which rivers and streams flowRead more

    The correct answer is: (a) An upland that separates two drainage basins ✅
    Explanation: Water Divide (also called Drainage Divide): A water divide is a geographical feature like a ridge, hill, or mountain that separates two drainage basins. It determines the direction in which rivers and streams flow.
    Example: The Western Ghats act as a water divide between rivers flowing into the Arabian Sea and those flowing into the Bay of Bengal. This question related to Chapter 3 Social Science Class 9th NCERT. From the Chapter 3 Drainage. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-9/social-science/

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  2. The kinetic energy of one mole of an ideal gas is given by: KE = (3/2) RT where: - R is the universal gas constant, - T is the absolute temperature in Kelvin. This equation follows from the kinetic theory of gases, which states that the total kinetic energy of gas molecules is directly proportionalRead more

    The kinetic energy of one mole of an ideal gas is given by:
    KE = (3/2) RT

    where:
    – R is the universal gas constant,
    – T is the absolute temperature in Kelvin.

    This equation follows from the kinetic theory of gases, which states that the total kinetic energy of gas molecules is directly proportional to temperature.

    Click here for more:
    https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-14/

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  3. Ice – Homogeneous (solid form of water, same composition throughout). Air – Homogeneous (if pure and well-mixed, like clean air). (i) Ice and (iv) Air are homogeneous in nature. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

    Ice – Homogeneous (solid form of water, same composition throughout).
    Air – Homogeneous (if pure and well-mixed, like clean air).
    (i) Ice and (iv) Air are homogeneous in nature.

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-2/

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  4. The angular frequency (ω) of a simple harmonic oscillator is given by: ω = √(k/m) where: - k is the force constant (spring constant), - m is the mass of the oscillator. This equation shows that the angular frequency depends on the stiffness of the spring and the mass of the object. Click here for moRead more

    The angular frequency (ω) of a simple harmonic oscillator is given by:
    ω = √(k/m)

    where:
    – k is the force constant (spring constant),
    – m is the mass of the oscillator.

    This equation shows that the angular frequency depends on the stiffness of the spring and the mass of the object.

    Click here for more:
    https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-13/

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  5. (b) Speed of sound in air v = 330 m s⁻¹ Time gap between lightening and thunder clap t = 5.5 s ∴ Distance of flash s = vt = 330 x 5.5 = 1815 m https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

    (b) Speed of sound in air v = 330 m s⁻¹
    Time gap between lightening and thunder clap t = 5.5 s
    ∴ Distance of flash s = vt = 330 x 5.5 = 1815 m

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-11/

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