(iv) A convex lens of focal length \( 25 cm \) is kept at the distance &#39; \( d \) &#39; from a concave lens of focal

(iv) A convex lens of focal length \( 25 cm \) is kept at the distance ' \( d \) ' from a concave lens of focal length \( 15 cm \). Value of \( d \) using the given diagram is: (a) \( 40 cm \) (b) \( 30 cm \) (c) \( 20 cm \) [1] (d) \( 10 cm \)

(iv) A convex lens of focal length \( 25 cm \) is kept at the distance ' \( d \) ' from a concave lens of focal length \( 15 cm \). Value of \( d \) using the given diagram is: (a) \( 40 cm \) (b) \( 30 cm \) (c) \( 20 cm \) [1] (d) \( 10 cm \)

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(iv) A convex lens of focal length \( 25 cm \) is kept at the distance &#39; \( d \) &#39; from a concave lens of focal length \( 15 cm \). Value of \( d \) using the given diagram is: (a) \( 40 cm \) (b) \( 30 cm \) (c) \( 20 cm \) [1] (d) \( 10 cm \)

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(iv) A convex lens of focal length \( 25 cm \) is kept at the distance ' \( d \) ' from a concave lens of focal length \( 15 cm \). Value of \( d \) using the given diagram is: (a) \( 40 cm \) (b) \( 30 cm \) (c) \( 20 cm \) [1] (d) \( 10 cm \)