A equiconvex lense of focal length f is cut into four type as shown and object is placed in front of remaining part of lens. Column –IColumn –II(i) [A] Intensity of image decreases(ii) [B] is focal length(iii) [C] 2f is focal length(iv) [D] magnification changes

A equiconvex lense of focal length f is cut into four type …

Physics Ray Optics Mix MCQ (Single Correct)

A equiconvex lense of focal length f is cut into four type as shown and object is placed in front of remaining part of lens.

Column –I	Column –II
(i)	[A] Intensity of image decreases
(ii)	[B] is focal length
(iii)	[C] 2f is focal length
(iv)	[D] magnification changes

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Ans.

(i) [C],[D]

(ii) [C],[D]

(iii) [A]

(iv) [A],[C],[D]

Sol.

(i) Intensity of image decreases, magnification

Changes

(ii) Intensity of image decreases, magnification

Changes

(iii) 2f is focal length

(iv) Intensity of image decreases, 2f is focal length,

Magnification changes

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