Latest IIT-JEE Aptitude Question SOLUTION: A resistance of 2 Ω is connected across one gap of a metre-bridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2Ω, is connected across the other gap

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Previous Question: The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest integer) is (A) 802 nm (B) 823 nm (C) 1882 nm (D) 1648 nm Next Question: A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is less than the critical angle. Then there will be (A) only a reflected ray and no refracted ray (B) only a refracted ray and no reflected ray (C) a reflected ray and a refracted ray and the angle between them would be less than 180° − 2θ (D) a reflected ray and a refracted ray and the angle between them would be greater than 180° − 2θ

(#M40028072) IIT-JEE question Mental Ability Keep an EYE

A resistance of 2 Ω is connected across one gap of a metre-bridge (the length of the wire is 100 cm) and an unknown
resistance, greater than 2Ω, is connected across the other gap. When these resistance are interchanged, the balance point
shifts by 20 cm. Neglecting any corrections, the unknown resistance is
(A) 3 Ω (B) 4 Ω
(C) 5 Ω (D) 6 Ω: Asked In IIT-JEE MAN (10 years ago); Unsolved; Is this Puzzle helpful? (0) (1) Submit Your Solution

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Previous Question: The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest integer) is (A) 802 nm (B) 823 nm (C) 1882 nm (D) 1648 nm Next Question: A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is less than the critical angle. Then there will be (A) only a reflected ray and no refracted ray (B) only a refracted ray and no reflected ray (C) a reflected ray and a refracted ray and the angle between them would be less than 180° − 2θ (D) a reflected ray and a refracted ray and the angle between them would be greater than 180° − 2θ

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