A parallel beam of light is incident on the system of two convex lenses of focal length `f_(1)=20cm` and `f_(2)=10cm` . What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated? A. 60 cmB. 30 cmC. 90 cmD. 40 cm

A parallel beam of light is incident on the system of two convex lense

1.	A parallel beam of light is incident on the system of two convex lenses of focal length `f_(1)=20cm` and `f_(2)=10cm` . What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated? A. 60 cmB. 30 cmC. 90 cmD. 40 cm
Answer» Correct Answer - B

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A parallel beam of light is incident on the system of two convex lenses of focal length `f_(1)=20cm` and `f_(2)=10cm` . What should be the distance between the two lenses so that rays after refraction from both the lenses pass undeviated? A. 60 cmB. 30 cmC. 90 cmD. 40 cm

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