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  1. Asked: In:

    Were all the plants planted at the same time? If not, why?

    Kiara Singh

    All plants are not planted at the same time because different plants thrive in specific seasons and conditions. Some crops prefer warm weather, while others grow well in cooler climates. Staggered planting also ensures continuous availability of fresh produce and prevents overcrowding. This practiceRead more

    All plants are not planted at the same time because different plants thrive in specific seasons and conditions. Some crops prefer warm weather, while others grow well in cooler climates. Staggered planting also ensures continuous availability of fresh produce and prevents overcrowding. This practice helps plants receive adequate nutrients and sunlight, promoting healthier growth and minimizing competition for resources. It also reduces risks of simultaneous pest or disease outbreaks.

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  2. Asked: In:

    Can all the plants be grown in a kitchen garden?

    Kiara Singh

    While many vegetables, herbs, and small fruits can be grown in a kitchen garden, not all plants are suitable. Crops requiring extensive space, specific soil types, or unique climatic conditions may not thrive. For example, large trees like mango or jackfruit need more room and time to mature. InsteaRead more

    While many vegetables, herbs, and small fruits can be grown in a kitchen garden, not all plants are suitable. Crops requiring extensive space, specific soil types, or unique climatic conditions may not thrive. For example, large trees like mango or jackfruit need more room and time to mature. Instead, smaller plants like tomatoes, mint, or coriander, which adapt well to limited spaces, are preferred for efficient use of a kitchen garden.

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  3. Asked: In:

    How is the soil prepared for sowing or planting?

    Kiara Singh

    Preparing soil involves loosening it with gardening tools to improve aeration and removing weeds or debris. Organic matter, such as compost or manure, is mixed into the soil to enrich it with nutrients. The soil’s moisture is adjusted by watering before planting seeds or seedlings. These steps ensurRead more

    Preparing soil involves loosening it with gardening tools to improve aeration and removing weeds or debris. Organic matter, such as compost or manure, is mixed into the soil to enrich it with nutrients. The soil’s moisture is adjusted by watering before planting seeds or seedlings. These steps ensure proper drainage, nutrient availability, and a healthy growing environment for plants. Well-prepared soil significantly boosts seed germination and plant growth.

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  5. Asked: In:

    How are the plants provided nutrition in addition to what they get from the soil?

    Kiara Singh

    In addition to soil nutrients, plants are nourished using organic manure, compost, or chemical fertilizers, depending on the garden's requirements. Mulching with dried leaves or straw retains moisture and enriches the soil as it decomposes. Foliar sprays and irrigation systems with nutrient-rich solRead more

    In addition to soil nutrients, plants are nourished using organic manure, compost, or chemical fertilizers, depending on the garden’s requirements. Mulching with dried leaves or straw retains moisture and enriches the soil as it decomposes. Foliar sprays and irrigation systems with nutrient-rich solutions provide additional nutrition. Crop rotation and intercropping practices also contribute to soil fertility, ensuring plants get a balanced nutrient supply for sustained growth and productivity.

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  6. Asked: In:

    The intensity of radiation emitted by the sun has its maximum value at a wavelength of 510 nm and that emitted by the North Star has the maximum value at 350 nm. If these stars behave like black bodies, then the ratio of the surface temperatures of the sun and the North Star is

    Karun Deshpande

    We can use Wien's Law to solve this problem. Wien's Law relates the temperature of a black body to the wavelength at which it emits maximum radiation. The formula is: λₘₐₓ T = b Where: - λₘₐₓ is the wavelength at which the maximum intensity occurs, - T is the temperature of the black body, - b is WiRead more

    We can use Wien’s Law to solve this problem. Wien’s Law relates the temperature of a black body to the wavelength at which it emits maximum radiation. The formula is:

    λₘₐₓ T = b

    Where:
    – λₘₐₓ is the wavelength at which the maximum intensity occurs,
    – T is the temperature of the black body,
    – b is Wien’s constant, which is approximately 2.898 × 10⁶ nm·K.

    Let’s denote the temperatures of the Sun and the North Star as Tₛᵤₙ and Tₙₒᵣₜₕₛₜₐᵣ, and their corresponding maximum wavelengths as λₛᵤₙ and λₙₒᵣₜₕₛₜₐᵣ.

    For the Sun:
    λₛᵤₙ = 510 nm

    For the North Star:
    λₙₒᵣₜₕₛₜₐᵣ = 350 nm

    Applying Wien’s Law for both stars, we can write:

    λₛᵤₙ Tₛᵤₙ = λₙₒᵣₜₕₛₜₐᵣ Tₙₒᵣₜₕₛₜₐᵣ

    Now, solving for the ratio of their temperatures:

    Tₛᵤₙ / Tₙₒᵣₜₕₛₜₐᵣ = λₙₒᵣₜₕₛₜₐᵣ / λₛᵤₙ

    Substituting the values:

    Tₛᵤₙ / Tₙₒᵣₜₕₛₜₐᵣ = 350 / 510 ≈ 0.686

    Therefore, the ratio of surface temperatures of Sun and North Star is approximately 0.69.

    Answer: 0.69

    See more:
    https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-10/

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