A telescope with magnification M = 15 was submerged in water so that the inside of the telescope is filled up with water. To make the system work as a telescope within the former dimensions, the objective was removed. What was the magnification of the telescope after the change? mu of the material of the eye-piece=1.5 and mu of water =(4)/(3)

A telescope with magnification M = 15 was submerged in water so that t

1.	A telescope with magnification M = 15 was submerged in water so that the inside of the telescope is filled up with water. To make the system work as a telescope within the former dimensions, the objective was removed. What was the magnification of the telescope after the change? mu of the material of the eye-piece=1.5 and mu of water =(4)/(3)
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