Two thin similar watch glass pieces are joined together,front to front ,with near convex portion silvered and the combination of glass pieces is place

Two thin similar watch glass pieces are joined together,front to front ,with near convex portion silvered and the combination of glass pieces is placed at a distance `a=60cm` from a screen.A small object is placed normal to the optical axis of the combination such that its image is two time the object. Now water is filled in between the glass. water`mu=4//3`,calculated the distance through,which the object must be displayed so that a sharp image is again formed on the screen.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Salim Ahmed Kawsar

Correct Answer - 15 cm towards the combination

4 views Answered 2023-02-05 15:29

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