A student wants to project the image of a candle flame on a screen 90 cm in front of a mirror by keeping the flame at a distance of 15 cm from its pole.
1. Suggest the type of mirror he should use.
a. Plane mirror
b. Convex mirror
c. Cylindrical mirror
d. Concave mirror
2. Determine the linear magnification in this case.
a. m = -1
b. m = -3
c. m = -6
d. None of these
3. Find the distance between the object and its image.
a. 15 cm
b. 75 cm
c. 90 cm
d. None of these
4. The mirror having reflecting surface curved inwards.
a. Plane mirror
b. Convex mirror
c. Cylindrical mirror
d. Concave mirror
5. Focal length of a concave mirror is
a. Negative
b. Positive
c. Depends on the position of the object.
d. Depends on the position of image.
