A convergent lens of focal length 20 cm and made of a material with re – McqOptions

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1.	A convergent lens of focal length 20 cm and made of a material with refractive index 1.1 is immersed in water the lens behaves as a
A.	Converging lens of focal length 20 cm
B.	Converging lens of focal length less than 20 cm
C.	Converging lens of focal length more than 20 cm
D.	Diverging lens
Answer» E.

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