A student investigates the image formed by a converging lens. Refer to Fig. 3.1. The student: - switches on the lamp - places the screen a distance $$\(D=80.0 \mathrm{~cm}\)$$ from the illuminated object (a triangular hole in a piece of card) - places the lens close to the illuminated object - moves the lens away from the illuminated object until a magnified, inverted, sharp image of the illuminated object is formed on the screen. Fig. 3.1 shows the position of the lens when the image is sharp. Fig. 3.1 (i) On Fig. 3.1, measure, to the nearest 0.1 cm , the object distance $$\(x\)$$ from the centre of the lens to the illuminated object. $$\[ x= \]$$ cm (ii) Fig. 3.1 is drawn to a scale of one-fifth full size. Calculate the actual object distance $$\(X\)$$. $$\[ X= \]$$ cm

Answer:

Knowledge points:

Solution: