A concave mirror is used to form an image of the sun on a white screen. If the lower half of the mirror is covered with a black paper, the effect on the image formed on the screen would be

A concave mirror is used to form an image of the sun on a white screen

1.	A concave mirror is used to form an image of the sun on a white screen. If the lower half of the mirror is covered with a black paper, the effect on the image formed on the screen would be
Answer» to make the image LESS bright than before to make the lower half of the image disappear to prevent the image from being focussed to make the image smaller in size Solution :If lower half (or a part) of a mirror is covered with a black paper then complete image of the OBJECT will bw FORMED as before. HOWEVER, the imega will be less bright now.