Question

MIRROR IMAGES: A magic mirror enlarges the things 2 times. A triangle of side 3 cm, 4 cm, 5 cm is put in front of the mirror
1. Find the length of the largest side of the image of the triangle ?

a. 25 cm
b. 10 cm
c. 30 cm
d. 20 cm​

Answer 1

Answer:

c. 30 cm

Step-by-step explanation:

Given magnification m=3

and object distance u=10 cm and we know,

Magnification m=

u

−v

−v=3×−10

v=30 cm

Thus the image is formed at distance of 30 cm.

Answer 2

Answer:

largest side of triangle = 5cm

magnification = 2x

so 5 × 2 = 10

so the triangle would be 10, 8, 6