Solve
Guides
0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Standard XII
Physics
Question

A point P(4,3) is reflected on the x-axis Its image Q is reflected on the y-axis to get R and R is again reflected on the x-axis If S is the image of R then the length of the diagonal of rectangle PQRS is
  1. 7
  2. 5
  3. 10
  4. 8

A
5
B
7
C
8
D
10
Open in App
Solution
Verified by Toppr

By Pythagoras theorem
OP2=42+32
or OP=√25=5
∴RP=10
1294641_379466_ans_0a9738cfbdd4408cbf02e332a55e46f6.bmp

Was this answer helpful?
0
Similar Questions
Q1
A point P(4,3) is reflected on the x-axis Its image Q is reflected on the y-axis to get R and R is again reflected on the x-axis If S is the image of R then the length of the diagonal of rectangle PQRS is
View Solution
Q2

The image of a point P on reflection in the y axis is Q. The mid point of PQ is invariant on reflection in the x axis. Locate the origin.


View Solution
Q3
A ray of light emerging from the point source placed at P(1,2) is reflected at a point Q on the y-axis and then passes through the point (6,9). Then
View Solution
Q4

P and Q have co-ordinates (0, 5) and (-2, 4).

(a) P is invariant when reflected in an axis. Name the axis.

(b) Find the image of Q on reflection in the axis found in (a)

(c) (0, k) on reflection in the origin is invariant. Write the value of k.

(d) Write the co-ordinates of the image of Q, obtained by reflection it in the origin followed by reflection in x-axis.

View Solution
Q5

(i) Plot the points A (3, 5) and B (-2, -4). Use 1 cm = 1 unit on both the axes.

(ii) A' is the image of A when reflected in the x-axis. Write down the co-ordinates of A' and plot it on the graph paper.

(iii) B' is the image of B when reflected in the y-axis, followed by reflection in the origin. Write down the co-ordinates of B' and plot it on the graph paper.

(iv) Write down the geometrical name of the figure AA'BB'.

(v) Name two invariant points under reflection in the x-axis.

View Solution