Recent questions tagged physics

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1 answer 339 views

How to convert 20.1741 to 2.02

asked Oct 16, 2022 in Chapter 1: Gravitation by Pragya

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1 answer 303 views

Two capillary tubes of radii 0.3 cm and 0.6 cm are dipped in the same liquid.

asked May 30, 2022 in Chapter3:Kinetic Theory of Gases and Radiation by anonymous

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1 answer 419 views

A hydraulic lift is designed to lift heavy objects of maximum mass 2000 kg. The area of cross section of piston

asked May 30, 2022 in Chapter3:Kinetic Theory of Gases and Radiation by nehapatil (3.2k points)

+1 vote

1 answer 1.0k views

The length of sides of a cuboid are a, 2a and 3a . if the relative percentage error in the measurement of a 1% , then what is the relative percentage error

asked Jun 5, 2021 in Physics by Doubtly (98.9k points)

+3 votes

1 answer 432 views

A particle is moving along a circular path with a constant speed 30 m/s.

asked Jun 2, 2021 in Physics by anonymous

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1 answer 455 views

A coil of inductance 300 mH and resistance 2 is connected to a source of voltage 2 V.

asked Jun 2, 2021 in Physics by Doubtly (98.9k points)

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1 answer 663 views

A rectangular loop is present in the magnetic field region of an infinite long wire. Now the loop is being rotated as shown in the figure.

asked Jun 2, 2021 in Physics by Doubtly (98.9k points)

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1 answer 291 views

A conducting square loop is placed in a magnetic field B with its plane perpendicular to the field. The sides of the loop start shrinking at a constant rate

asked Jun 2, 2021 in Physics by Doubtly (98.9k points)

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1 answer 586 views

Two particles having mass M1 = 4 gm, M2 = 16 gm. If kinetic energy of both the particle is equal then ratio of their momentum is n : 2 then n is:

asked May 1, 2021 in Physics by Doubtly (98.9k points)

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1 answer 247 views

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 499 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 699 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 209 views

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 351 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 311 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 337 views

Two capacitors C1 and C2 are charged to 120 V and 200 V, respectively.

asked Apr 8, 2021 in Physics by Doubtly (98.9k points)

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1 answer 354 views

An electric dipole is placed at an angle of 30º to a non-uniform electric field. The dipole will experience

asked Apr 8, 2021 in Physics by Doubtly (98.9k points)

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1 answer 762 views

The resistance of a wire at room temperature 20°C is found to be 20W. Now to increase the resistance by 20%,

asked Apr 8, 2021 in Physics by Doubtly (98.9k points)

+1 vote

1 answer 269 views

A circular disc rolls down an inclined plane. The ratio of the total kinetic energy to the rotational kinetic energy is

asked Apr 8, 2021 in Physics by Doubtly (98.9k points)

0 votes

1 answer 286 views

If a machine is lubricated with oil (a) the mechanical advantage of the machine increases

asked Apr 6, 2021 in Physics by Doubtly (98.9k points)

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