A diverging lens of focal length 10 cm having refractive index 1.5 is immersed in a liquid of refractive index 3. The focal length and nature of the lens in liquid is

A convex lens of refractive index 1.5 is immersed in a liquid of refractive index: 1.6 What will happen to the focal length and nature of lens ?

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

A convex lens of focal length 20 cm made of glass of refractive index 1.5 is immersed in water having refractive index 1.33 . The change in the focal length of lens is

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:

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: