1
JEE Main 2014 (Offline)
+4
-1
The image of the line $${{x - 1} \over 3} = {{y - 3} \over 1} = {{z - 4} \over { - 5}}\,$$ in the plane $$2x-y+z+3=0$$ is the line:
A
$${{x - 3} \over 3} = {{y + 5} \over 1} = {{z - 2} \over { - 5}}$$
B
$${{x - 3} \over { - 3}} = {{y + 5} \over { - 1}} = {{z - 2} \over 5}\,$$
C
$${{x + 3} \over 3} = {{y - 5} \over 1} = {{z - 2} \over { - 5}}\,$$
D
$${{x + 3} \over { - 3}} = {{y - 5} \over { - 1}} = {{z + 2} \over 5}$$
2
JEE Main 2014 (Offline)
+4
-1
The angle between the lines whose direction cosines satisfy the equations $$l+m+n=0$$ and $${l^2} = {m^2} + {n^2}$$ is
A
$${\pi \over 6}$$
B
$${\pi \over 2}$$
C
$${\pi \over 3}$$
D
$${\pi \over 4}$$
3
JEE Main 2013 (Offline)
+4
-1
Distance between two parallel planes $$2x+y+2z=8$$ and $$4x+2y+4z+5=0$$ is
A
$${3 \over 2}$$
B
$${5 \over 2}$$
C
$${7 \over 2}$$
D
$${9 \over 2}$$
4
JEE Main 2013 (Offline)
+4
-1
If the lines $${{x - 2} \over 1} = {{y - 3} \over 1} = {{z - 4} \over { - k}}$$ and $${{x - 1} \over k} = {{y - 4} \over 2} = {{z - 5} \over 1}$$ are coplanar, then $$k$$ can have
A
any value
B
exactly one value
C
exactly two values
D
exactly three values
JEE Main Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
EXAM MAP
Joint Entrance Examination