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प्रश्न
With reference of convex lens define the following:
Second principal focus of convex lens.
व्याख्या
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उत्तर
Second principal focus is a point on the principal axis of a convex lens at which rays of light travelling parallel to the principal axis meet after refraction through the lens.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Refraction of Light - EXERCISE-3 [पृष्ठ ९८]
