1

WB JEE 2021

MCQ (Single Correct Answer)

+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

2

WB JEE 2021

MCQ (Single Correct Answer)

+1

-0.25

A line with positive direction cosines passes through the point P(2, $$-$$1, 2) and makes equal angle with co-ordinate axes. The line meets the plane 2x + y + z = 9 at point Q. The length of the line segment PQ equals.

3

WB JEE 2021

MCQ (Single Correct Answer)

+2

-0.5

The plane lx + my = 0 is rotated about its line of intersection with the plane z = 0 through an angle $$\alpha$$. The equation changes to

4

WB JEE 2020

MCQ (Single Correct Answer)

+1

-0.25

The equation of the plane through the point $$(2, - 1, - 3)$$ and parallel to the lines

$${{x - 1} \over 2} = {{y + 2} \over 3} = {z \over { - 4}}$$ and $${x \over 2} = {{y - 1} \over { - 3}} = {{z - 2} \over 2}$$ is

$${{x - 1} \over 2} = {{y + 2} \over 3} = {z \over { - 4}}$$ and $${x \over 2} = {{y - 1} \over { - 3}} = {{z - 2} \over 2}$$ is

Questions Asked from Three Dimensional Geometry (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

WB JEE Subjects

Physics

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Units & Measurements
Vector Algebra
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Laws of Motion
Work Power & Energy
Center of Mass
Rotational Motion
Properties of Matter
Heat and Thermodynamics
Simple Harmonic Motion
Waves
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Optics

Modern Physics

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Physical Chemistry

Some Basic Concepts of Chemistry
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Redox Reaction
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Radioactivity and Nuclear Chemistry
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Periodic Table
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