1
WB JEE 2023
+1
-0.25 The angle between a normal to the plane $$2x - y + 2z - 1 = 0$$ and the X-axis is

A
$${\cos ^{ - 1}}{2 \over 3}$$
B
$${\cos ^{ - 1}}{1 \over 5}$$
C
$${\cos ^{ - 1}}{3 \over 4}$$
D
$${\cos ^{ - 1}}{1 \over 3}$$
2
WB JEE 2022
+1
-0.25 The equation of the plane through the intersection of the planes x + y + z = 1 and 2x + 3y $$-$$ z + 4 = 0 and parallel to the x-axis is

A
y + 3z + 6 = 0
B
y + 3z $$-$$ 6 = 0
C
y $$-$$ 3z + 6 = 0
D
y $$-$$ 3z $$-$$ 6 = 0
3
WB JEE 2022
+1
-0.25 The line $$x - 2y + 4z + 4 = 0$$, $$x + y + z - 8 = 0$$ intersect the plane $$x - y + 2z + 1 = 0$$ at the point

A
$$( - 2,5,1)$$
B
$$(2, - 5,1)$$
C
$$(2,5, - 1)$$
D
$$(2,5,1)$$
4
WB JEE 2021
+1
-0.25 If from a point P(a, b, c), perpendicular PA and PB are drawn to YZ and ZX-planes respectively, then the equation of the plane OAB is
A
bcx + cay + abz = 0
B
bcx + cay $$-$$ abz = 0
C
bcx $$-$$ cay + abz = 0
D
bcx $$-$$ cay $$-$$ abz = 0
WB JEE Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
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