What is the lens formula for a thin lens?, , , , , NONE OF THESE , ALL OF THESE , What happens to the direction of rays emerging from the first lens when they enter the second lens in a two-lens system?, They remain unchanged., They are reflected back., They change according to the angle at which they strike the second lens., They diverge more., If lens A forms a real image that acts as a virtual object for lens B, what type of image does lens A produce?, Virtual image, Real image, Erect image, Diminished image, The total magnification of a combination of lenses is calculated by:, Adding the magnifications of each lens, Multiplying the magnifications of each lens, Subtracting the magnifications of each lens, Dividing the magnifications of each lens, In an optical instrument, the combination of lenses can enhance which of the following?, Color distortion, Light intensity, Sharpness of the image, Distance of view.

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