📚 Physics - Mechanical Properties of Fluids [MEDIUM]
Surface tension of a soap bubble is 2.0 x 10⁻ 2 N m⁻ 1. Work done to increase the radius of soap bubble from 3.5 cm to 7 cm will be Take [ pi = 22 7 ]
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📚 Physics - Electromagnetic Waves [MEDIUM]
The capacitance of a parallel plate condenser is 50pF. A magnetic field of 4 x 10⁻ 7 T is produced at a distance of 10 cm from the axis of the gap. The charging current is [Radius of each plate is equalm 10 cm ]
📚 Chemistry - Amines [EASY]
Aniline when treated with benzoyl chloride, gives benzanilide the reaction is known as
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📚 Biology - Breathing and Exchange of Gases [EASY]
In humans, pCO₂ in the inhaled and tissues is, respectively
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📚 Physics - Laws of Motion [HARD]
A straw of mass 1 g and length 4 cm lies on a smooth horizontal surface. A bug of mass 3 g starts to move from one end of the straw. The coefficient of friction between straw and the bug is mu =0.05. The minimum time in which it can cross the straw length is sqrt(100 n) s. The value of n is
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📚 Chemistry - Structure of Atom [HARD]
The wave function () of 2 s is given by₂ s = 1 2sqrt(2 pi) (1 a₀)¹/2 (2 - r a₀) e⁻ r /2 a₀ At r = r₀, radial node is formed. Thus, r₀ in terms of a₀
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📚 Physics - Electrostatic Potential and Capacitance [HARD]
The potential of a large liquid drop when eight liquid drops are combined is 20 V. Then the potential of each single drop was