An equiconvex lens (of refractive index 1.5) is placed in contact with plane mirror as shown in the figure. A small needle with its tip on the principal axis is moved along the axis until its inverted image is found at the position of the needle. The distance of the needle from the lens is measured to be 30 cm. Now a few drops of a liquid are put in between the lens and the plane mirror and the new position of the image is found to be located at 45 cm. Calculate the refractive index of the liquid

An equiconvex lens (of refractive index 1.5) is placed in contact with plane mirror as shown in
the figure. A small needle with its tip on the principal axis is moved along the axis until its
inverted image is found at the position of the needle. The distance of the needle from the lens
is measured to be 30 cm. Now a few drops of a liquid are put in between the lens and the
plane mirror and the new position of the image is found to be located at 45 cm. Calculate the
refractive index of the liquid

NIOS Tutor Mark Assignment 2017-18 call us for solved Assignment@9582489391

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In case, the Study Centre is not functioning or closed due to administrative reasons, you may submit the TMA as per the schedule given above, at the Regional Centre of your area which will take necessary action for evaluation and sending awards to the NIOS Head Quarters for inclusion in the final result.

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