Suppose you have three concave mirrors A, B, and C of focal lengths 10 cm, 15 cm and 20 cm. For each concave mirror, you perform the experiment of image formation for three values of an object distance of 10 cm, 20 cm and 30 cm. Giving reason and answer the following:
a) For the three object distance, identify the mirror/ mirrors which will form an image of magnification -1.
b) Out of the three mirrors identify the mirror which would be preferred to be used for shaving purposes/makeup.
Suppose you have three concave mirrors A, B, and C of focal lengths 10 cm, 15 cm and 20 cm. For each concave mirror, you perform the experiment of image formation for three values of an object distance of 10 cm, 20 cm and 30 cm. Giving reason and answer the following:
a) For the three object distance, identify the mirror/ mirrors which will form an image of magnification -1.
b) Out of the three mirrors identify the mirror which would be preferred to be used for shaving purposes/makeup.
Three concave mirrors A, B and C, focal length of mirror is
A = 20 cm;
B = 15 cm
C = 10 cm
Object distances for these mirrors are 30 cm, 10 cm and 20 cm respectively.
a) Mirror C will produce an image of the same size as an object because the object is placed on C.
b) Mirror B can be used as shaving mirror because when the object is kept between P and F we get virtual, erect and magnified image.
Three concave mirrors A, B and C, focal length of mirror is
A = 20 cm;
B = 15 cm
C = 10 cm
Object distances for these mirrors are 30 cm, 10 cm and 20 cm respectively.
a) Mirror C will produce an image of the same size as an object because the object is placed on C.
b) Mirror B can be used as shaving mirror because when the object is kept between P and F we get virtual, erect and magnified image.
