Recent questions in 2020

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The time period of revolution of electron in its ground state orbit in a hydrogen atom is 1.6 × 10–16 s.

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 228 views

If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10-8 sin(1.6 x 103x + 48 x 1010 t)j

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 359 views

Two infinite planes each with uniform surface charge density + σ are kept in such a way that the angle between

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 234 views

The current I1 (in A) flowing through 1 Ω resistor in the following circuit is :

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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1 answer 441 views

Consider a circular coil of wire carrying current I, forming a magnetic dipole.

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 309 views

Two moles of an ideal gas with CP/CV = 5/3 are mixed with 3 moles of another ideal gas with CP/CV = 4/3.

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 294 views

A long solenoid of radius R carries a time (t) dependent current I(t) = I0t(1 − t). A ring of radius 2R

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 192 views

A 60 HP electric motor lifts an elevator having a maximum total load capacity of 2000 kg.

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 170 views

Which of the following gives a reversible operation?

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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0 answers 398 views

A polarizer-analyzer set is adjusted such that the intensity of light coming out of the analyzer is just 10 % of the

asked Dec 17, 2021 in 2020 by Doubtly (98.9k points)

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