Two converging lenses are placed as in the figure: (F1=20 cm, F2= 20 cm) 1. Find

Question

Two converging lenses are placed as in the figure: (F1=20 cm, F2= 20 cm) 1. Find the position of the image formed by the firstlens.       a. 60 cm, left oflens 1    b. 30cm, left      c. 30 cm,right      d. 60 cm, right 2. The image formed by lens 1 is:       a. upright,magnified      b. upright,diminished      c. inverted,magnified      d. inverted,diminished 3. Find the position of the FINAL image relative to lens2.        a. |d| > 14cm,left       b. |d| < 14cm,left         c. |d|> 14 cm, right       d.|d|<14 cm, right 4. The final image is       a. upright,magnified      b. upright,diminished      c. inverted,magnified      d. inverted,diminished

Explanation / Answer

1)1/v=1/f+1/u=1/20+1/-30=1/20-1/30=>v=60cm right of the lenshence option D is correct. 2)inverted, diminished 3). |d| > 14cm, left     4) upright,magnified

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