Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
A ray emanating from the point
(
0
,
6
)
(0, 6)
(
0
,
6
)
is incident on the ellipse
25
x
2
+
16
y
2
=
1600
25x^2 + 16y^2 = 1600
25
x
2
+
16
y
2
=
1600
at the point
P
P
P
with ordinate 5. After reflection, ray cuts the
Y
Y
Y
-axis at
B
B
B
. The length of
P
B
PB
P
B
is a. 5 b. 7 c. 12 d. 13
Browse the problem library