Home/ Gajasura/Answers
  1. Asked: In:

    Explain how defects in a metal block can be detected using ultrasound.

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

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  2. Asked: In:

    A sonar device on a submarine sends out a signal and receives an echo 5 s later. Calculate the speed of sound in water if the distance of the object from the submarine is 3625 m.

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

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  3. Asked: In:

    Suppose you and your friend are on the moon. Will you be able to hear any sound produced by your friend?

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-12/

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    • 1
  4. Asked: In:

    Rutherford’s alpha-particle scattering experiment was responsible for the discovery of:

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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  6. Asked: In:

    An isotope of iodine is used for making tincture iodine, which is used as a medicine. it is neutral. Is it true or false?

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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    • 1
  7. Asked: In:

    The mass of an electron is about 1/2000 times that of proton. it is neutral. Is it true or false?

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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    • 1
  8. Asked: In:

    A neutron is formed by an electron and a proton combining together. Therefore, it is neutral. Is it true or false?

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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    • 1
  9. Asked: In:

    Draw a sketch of Bohr’s model of an atom with three shells.

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/

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  11. Asked: In:

    What is the mass of:?

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

    Get Hindi Medium and English Medium NCERT Solution for Class 9 Science to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-3/

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  12. Asked: In:

    State whether true or false The field at the center of a long circular coil carrying current will be parallel straight lines.

    Gajasura

    Get Hindi Medium and English Medium NCERT Solution for Class 10 Maths to download. Please follow the link to visit website for first and second term exams solutions. https://www.tiwariacademy.com/ncert-solutions/class-10/maths/chapter-13/

    Get Hindi Medium and English Medium NCERT Solution for Class 10 Maths to download.
    Please follow the link to visit website for first and second term exams solutions.
    https://www.tiwariacademy.com/ncert-solutions/class-10/maths/chapter-13/

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