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If a magnet is suspended at an angle 30⁰ to the magnetic meridian, the dip needle makes angle of 45⁰ with the horizontal. The real dip is
Options
(a) tan⁻¹(√3/2)
(b) tan⁻¹(√3)
(c) tan⁻¹(3/√2)
(d) tan⁻¹(2/√3)
Correct Answer:
tan⁻¹(2/√3)
Explanation:
tan δ’ = tan δ / cos θ = tan 45° / cos 30°
tan δ’ = 1 / (√3/2) = 2 / √3
δ’ = tan⁻¹ (2 / √3)
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- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If a small sphere is let fall vertically in a large quantity of still liquid of density
- 34 gram of water at 30⁰C is poured into a calorimeter at 15⁰C.
- A wire of length 1 m is moving at a speed of 2 ms⁻¹ perpendicular to its length
- A thin convex lens of refractive index 1.5 has 20 cm focal length in air. If the lens
- The potential energy of a 1 kg particle free to move along the x-axis is given by
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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