Question

a plane mirror is on y-z plane facing positive x-axis.A point object is present at (10,5) . the mirror is translated by 2-units along positive x and 3units along positive y direction.Final image of the point object is at ?

Answer 1

Explanation:

A

(−10,−5)

Given that,

plane mirror is on y-z plane facing x-axis. Object is present at (10, 5) .

Now, the mirror is translated by 2 units in positive x-axis and 3 units in positive direction.

Let the image be at Q (x, y). As P is image of Q, M will be its midpoint.

⇒(

2

x+10

,

2

y+5

)=(2,5)

⇒x+10=4,y+5=10

⇒x=−6,y=5

⇒Q=(−6,5)

Therefore, final image will form at (-6, 5)