Question
Physics Question on Ray optics and optical instruments
A convex lens has a focal length of f = 20 cm, R1 = 15 cm, R2 = 30 cm. The refractive index of the lens is 2x The value of x is _______ .
Answer
The correct answer is 3.
A convex lens has a focal length of f = 20 cm, R1 = 15 cm, R2 = 30 cm. The refractive index of the lens is 2x The value of x is _______ .
The correct answer is 3.