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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two thin similar watch glass pieces are joined together, front to front, with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen.

Two thin similar watch glass pieces are joined together, front to front, with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen.

front to front Two thin similar watch glass pieces are joined together with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen.