[" (6) A converging lens has a focal length of 20"cm" in air.It is made of a "],[" material of refractive index 1.6.If it is immersed in a liquid of refractive "],[" index 1.3,find its new focal length."]

A converging lens has focal length of 20 cm in air. It is made of a material of refractive index 1.6. If it is immersed in a liquid of refractive index 1.3, what will be its new focal length?

A converging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6 . If it is immersed in a liquid of refractive index 1.3 , what will be its new foacl length ?

A converging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6 . If it is immersed in a liquid of refractive index 1.3 , what will be its new foacl length ?

A corverging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6 . If is immersed in a liquid of refractive index 1.3 , what will be its new focal length ?

A converging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6. If it is immersed in a liquid of refractive index 1.3, what will be the new focal length? How does the nature of the lens change. If this lens is immersed is a liquid of refractive index 1.8 ?

A converging lens has a focal length of 20 cm in air. It is made of a material of refractive index 1.6. If it is immersed in water of refractive index 1.3, what will be the new focal length?

A lens is made of flint glass (refractive index =1.5 ). When the lens is immersed in a liquid of refractive index 1.25 , the focal length: