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Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m-2, at a distance 22 cm from the lens on the other side is__________.
    Correct answer is '130'. Can you explain this answer?
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    Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex...
    The below diagram shows falling of the sunlight parallel to a thin convex lens:

    The ratio of area is calculated as,

    The final intensity of the sunlight is calculated as,
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    Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex...
    Given Data:
    Intensity of sunlight, I = 1.3 kW m-2
    Focal length of the lens, f = 20 cm = 0.2 m
    Distance from the lens, u = 22 cm = 0.22 m

    Calculating the Average Intensity of Light:
    Using the lens formula, 1/f = 1/v + 1/u, where v is the image distance:
    1/0.2 = 1/v + 1/0.22
    v = 0.22 m
    Now, using the lens formula for magnification, M = -v/u:
    M = -0.22/0.22 = -1
    The intensity of light at a distance u from the lens is given by:
    I' = I * (1 + M)
    Substitute the given values:
    I' = 1.3 * (1 - 1)
    I' = 1.3 kW m-2
    Therefore, the average intensity of light at a distance 22 cm from the lens on the other side is 130 kW m-2.
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    Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m-2, at a distance 22 cm from the lens on the other side is__________.Correct answer is '130'. Can you explain this answer?
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    Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m-2, at a distance 22 cm from the lens on the other side is__________.Correct answer is '130'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m-2, at a distance 22 cm from the lens on the other side is__________.Correct answer is '130'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sunlight of intensity 1.3 kW m-2 is incident normally on a thin convex lens of focal length 20 cm. Ignore the energy loss of light due to the lens and assume that the lens aperture size is much smaller than its focal length. The average intensity of light, in kW m-2, at a distance 22 cm from the lens on the other side is__________.Correct answer is '130'. Can you explain this answer?.
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