Recent questions in Physics

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A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T.

asked Apr 16, 2021 in Physics by Doubtly (98.9k points)

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The radius in kilometre to which the present radius of earth (R = 6400 km) to be compressed so that the escape velocity is increased 10 times is ____________

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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A Carnot's engine working between 400 K and 800 K has a work output of 1200 J per cycle.

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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A polyatomic ideal gas has 24 vibrational modes. What is the value of gamma ?

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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Which level of the single ionized carbon has the same energy as the ground state energy of hydrogen atom ?

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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1 answer 319 views

The output of the given combination gates represents :

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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For what value of displacement the kinetic energy and potential of a simple harmonic oscillation become equal ?

asked Apr 15, 2021 in Physics by Doubtly (98.9k points)

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Which polymer is used in the manufacture of paints and lacquers?

asked Apr 13, 2021 in Physics by anonymous

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1 answer 161 views

In thermodynamics, heat and work are : (1) Extensive thermodynamic state variables (2) Point functions (3) Path functions

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 307 views

One main scale division of a vernier callipers is 'a' cm and nth division of the vernier scale coincide with (n – 1)th

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 403 views

A 25 m long, antenna is mounted on an antenna tower. The height of the antenna tower is 75 m.

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 290 views

The maximum and minimum distances of comet from the Sun are 1.6 × 1012 m and 8.0 × 1010 m respectively

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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22 Ne nucleus, after absorbing energy, decays into two α-particles and an unknown nucleus. The unknown nucleus is

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 224 views

Which of the following statement(s) is (are) correct ? (A) The rest mass of a stable nucleus is less than the

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 245 views

The electron in a hydrogen atom makes a transition from an excited state to the ground state. Which of the following statements is true?

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9eV.

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 232 views

The ratio of series limit wavelength of Balmer series to wavelength of first line of paschen series is ……….

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 201 views

A parallel beam of uniform, monochromatic light of wavelength 2640 A has an intensity of 200W/m2 . The number of photons in 1mm3 of this radiation are ….

asked Apr 13, 2021 in Physics by Doubtly (98.9k points)

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1 answer 396 views

Mass of Li3+ is 8.33 times mass of proton Li3+ and proton are accelerated through same potential difference. Then ratio of debroglie's

asked Apr 12, 2021 in Physics by Topper11 (2.8k points)

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1 answer 857 views

A stationary body explodes into two fragments each of rest mass 1kg that move apart at speeds of 0.6c relative to the original body

asked Apr 11, 2021 in Physics by Doubtly (98.9k points)

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