NCERT Class 11-Math՚s: Exemplar Chapter – 10 Straight Lines Part 11 (For CBSE, ICSE, IAS, NET, NRA 2023)
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Question 36:
For specifying a straight line, how many geometrical parameters should be known?
(A)
(B)
(C)
(D)
Answer: (B)
Question 37:
The point undergoes the following two successive transformations:
(i) Reflection about the line
(ii) Translation through a distance units along the positive axis
Then the final coordinates of the point are
(A)
(B)
(C)
(D)
Answer: (B)
Question 38:
A point equidistant from the lines and is
(A)
(B)
(C)
(D)
Answer: (C)
Question 39:
A line passes through and is perpendicular to the line . it՚s intercept is
(A)
(B)
(C)
(D)
Answer: (D)
Question 40:
The ratio in which the line divides the distance between the lines and is
(A)
(B)
(C)
(D)
Answer: (B)
Question 41:
One vertex of the equilateral triangle with centroid at the origin and one side as is
(A)
(B)
(C)
(D)
[Hint: Let ABC be the equilateral triangle with vertex and let be the point on BC. Then . Also and
Answer: (B)
Fill in the Blank in Exercises 42 to 47
Question 42:
If are in A. P. , then the straight lines will always pass through ________.
Answer:
Question 43:
The line which cuts off equal intercept from the axes and pass through the point is ________.
Answer:
Question 44:
Equations of the lines through the point and making an angle of with the line are ________.
Answer:
Question 45:
The points and are situated on the ________ of the line .
Answer:
Opposite sides