(2012?Changchun) Xiaoming in the investigation of convex lens imaging law of the experiment: (1) when the candle, convex lens, light screen placed in the position of Figure 1, the light screen get

(1) from the figure can be seen, when the candle, convex lens, light screen placed in the position of Figure 1, the object distance is greater than the image distance, by the law of convex lens imaging can be seen, this time into an inverted reduced solid image, its application is the camera.

The answer is: narrowing; camera

(2) the two focal lengths of the convex lens in the same position, the same scene in the distance outside the window, that is, the object distance is unchanged, but when the focal length of the convex lens becomes larger, the object distance is relatively small, so when the object distance is relatively small, the image distance is also larger, the image also becomes larger.

The answer is: long.