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Friday, 9 October

NEET UG 2017 · Physics · Question 28

NEET 2017 Physics, question 28

Question 28 of the NEET 2017 paper (code A) is a Physics question from Magnetism and Matter. Its idea, Earth's Magnetism and Angle of Dip, was asked twice, in 2017 and 2019, across NEET 2017–2026. The CBSE official answer key gives option 1.

Updated 2026-10-08

Q28 · Physics

If θ1\theta_1 and θ2\theta_2 be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip θ\theta is given by :

  1. 1cot⁡2θ=cot⁡2θ1+cot⁡2θ2\cot^2\theta=\cot^2\theta_1+\cot^2\theta_2Official answer
  2. 2tan⁡2θ=tan⁡2θ1+tan⁡2θ2\tan^2\theta=\tan^2\theta_1+\tan^2\theta_2
  3. 3cot⁡2θ=cot⁡2θ1−cot⁡2θ2\cot^2\theta=\cot^2\theta_1-\cot^2\theta_2
  4. 4tan⁡2θ=tan⁡2θ1−tan⁡2θ2\tan^2\theta=\tan^2\theta_1-\tan^2\theta_2

Official answer: option 1 · CBSE official answer key

Same idea

Earth's Magnetism and Angle of Dip, in other papers

NEET asked this idea twice, in 2017 and 2019. The other question below.

  • 2019 Q26At a point A on the earth's surface the angle of dip, δ = +25°. At a point B on the earth's surface the angle of dip, δ = −25°. We can…One-line MCQ · Medium

Earth's Magnetism and Angle of Dip: every question and how it was framed

The chapter

Magnetism and Matter in ten years of NEET

8 questions from 2017–2026, asked in 6 of 10 papers, about 0.8 a paper. Magnetism and Matter alone had 8.

Chapter analysisStudy this chapterPractise this chapter

Magnetism and Matter: questions per paper

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