A thin glass (refractive index 1.5) lens has optical power of `-5D` in air. Its optical power in a liquid medium with refractive index 1.6 will be

A thin glass (refractive index 1.5 ) lens has optical power of -8D in air, its optical power in a liquid medium with refractive index 1.6 will be

A thin glass (refractive index 1.5 ) lens has optical power of -8D in air, its optical power in a liquid medium with refractive index 1.6 will be

A thin glass (refractie index = 1.5) lens has optical power of -5 D in air.Its optical power in a liquuid of refractive index 1.6 will be

A biconvex lens of refractive index "1.5" has a focal length of "20cm" in air.Its focal length when immersed in a liquid of refractive index "1.6" will be:

A thin lens of refractive index 1.5 has focal length of 15 cm in air. When the lens is placed is a medium of refractive index (4)/(3), its focal length will become …..cm.

A thin lens of refractive index 1.5 has focal length of 15 cm in air. When the lens is placed is a medium of refractive index (4)/(3), its focal length will become …..cm.

A thin convex lens made of glass of refractive index 3//2 has a power of 5 D. When it is immersed in a liquid of refractive index mu , it behaves like a divergent lens of focal length 1 m. Calculate the refractive index of the liquid.

A thin convex lens of refractive index 1.5cm has 20cm focal length in air. If the lens in completely immersed in a liquid of refractive index. 1.6, then its focal length will be

A thin convex lens of refractive index 1.5cm has 20cm focal length in air. If the lens in completely immersed in a liquid of refractive index. 1.6, then its focal length will be