1.

(76.) The focal length of a convex lens is 18 cm andthe size of the image is a quarter of the object.The object is situated at a distance of:(1) 90 cmO (2) 54 cm(3) 22.5 cmO (4) 60 cmoo​

Answer»

Answer:

54cm

Explanation:

A point object is situated at a DISTANCE of 54cm from the center of the sphere of RADIUS 18cm and refractive index 1.5. Locate the POSITION of the IMAGE due to REFRACTION through the sphere.



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