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Question Practice

If λ is a constant that connects direction ratios and direction cosines, how can two sets of ratios relate?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Mathematics
Mathematics Part - II
Three Dimensional Geometry
Question Bank

If λ is a constant that connec...

Single Answer MCQ
Q-00078353

If λ is a constant that connects direction ratios and direction cosines, how can two sets of ratios relate?

1

They cannot relate at all.

2

Ratios will differ based on the value of λ.

3

As λ changes, the ratios will remain fixed.

4

They can become congruent.

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Q1.

What are the direction cosines of a line?

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Q2.

If a line makes angles α, β, and γ with the x, y, and z axes, respectively, what is true about the direction cosines l, m, n?

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Q3.

What do direction ratios represent for a line in three-dimensional space?

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Q4.

What happens to the direction cosines if the direction of a line is reversed?

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