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JEE Advance 2025 Paper 1

JEE Advance · 2025

94 questions · One at a time

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53
MCQ4 marks

Let z1=1+2iz_{1} = 1 + 2i   and z2=3iz_{2} = 3i  . Let S={(x,y)∈R×R:∣x+iy−z1∣=2∣x+iy−z2∣}S = \{(x, y) \in \mathbb{R} \times \mathbb{R} : |x + iy - z_{1}| = 2|x + iy - z_{2}| \}  . Then which of the following is (are) TRUE?

  • A.S is a circle with centre (-1/3, 10/3)Correct
  • B.S is a circle with centre (1/3, 8/3)
  • C.S is a circle with radius 2/3\sqrt{2}/3
  • D.S is a circle with radius 22/32\sqrt{2}/3Correct
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