Febin is doing an experiment as shown above. He draws a straight line on table. At one end of the line, he placed a concave mirror of focal length 20 cm. Marked principle focus (F) and centre of curvature (C) on the line. He fixed a burning candle on the principle focus in such a way that it is at a slight distance from the centre of curvature. Arranged a screen in such a way that a clear image is obtained on the screen.
1. What is the position of the image?
a. At F
b. At C
c. Between F and C
d. At infinity
2. The image formed is
a. Real and erect
b. Real and inverted
c. Virtual and erect
d. Virtual and inverted
3. If plane mirror is placed instead of concave mirror, then the size of the image is
a. Less than the size of object
b. Greater than size of object
c. Same size as object
d. None of these
4. If convex mirror is placed instead of concave, then the image formed is
a. Real and erect
b. Real and inverted
c. Virtual and erect
d. Virtual and inverted
5. Position of the object is at infinity and the position of the image formed by a convex mirror is at the focus F, behind the mirror. What will be the nature of the image?
a. Real and erect
b. Real and inverted
c. Virtual and erect
d. Virtual and inverted
