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Recent questions in Physics

by JeeNeetQnA in Electromagnetic Induction and Alternating Currents asked Sep 14 281 views

A series LCR circuit containing 5.0 H inductor, 80 µF capacitor and 40 Ω resistor is connected to 230 V variable

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by JeeNeetQnA in Laws of Motion asked Sep 14 70 views

A ball of mass 0.15 kg is dropped from a height 10 m, strikes the ground and rebounds to the same height.

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by JeeNeetQnA in Electromagnetic Induction and Alternating Currents asked Sep 14 33 views

A step down transformer connected to an ac mains supply of 220 V is made to operate at 11 V, 44 W lamp.

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by JeeNeetQnA in Electrostatics asked Sep 14 21 views

Twenty seven drops of same size are charged at 220 V each. They combine to form a bigger drop.

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by JeeNeetQnA in Work, Energy and Power asked Sep 14 12 views

Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are

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by JeeNeetQnA in Laws of Motion asked Sep 14 37 views

A spring is stretched by 5 cm by a force 10 N. The time period of the oscillations when a mass of 2 kg is suspended

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by JeeNeetQnA in Current Electricity asked Sep 14 42 views

In a potentiometer circuit a cell of EMF 1.5 V gives balance point at 36 cm length of wire. If another cell of EMF 2.5 V

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by JeeNeetQnA in Physics and Measurement asked Sep 14 12 views

If force [F], acceleration [A] and time [T] are chosen as the fundamental physical quantities. Find the dimensions of

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by JeeNeetQnA in Dual Nature of Matter and Radiation asked Sep 14 22 views

The number of photons per second on an average emitted by the source of monochromatic light of wavelength 600 nm

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by JeeNeetQnA in Electronic Devices asked Sep 14 58 views

The electron concentration in an n-type semiconductor is the same as hole concentration in a p-type semiconductor.

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by JeeNeetQnA in Atoms and Nuclei asked Sep 14 9 views

A nucleus with mass number 240 breaks into two fragments each of mass number 120, the binding energy per nucleon

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by JeeNeetQnA in Current Electricity asked Sep 14 54 views

The effective resistance of a parallel connection that consists of four wires of equal length

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by JeeNeetQnA in Physics and Measurement asked Sep 14 12 views

A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading: 0 mm

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by JeeNeetQnA in Gravitation asked Sep 14 10 views

The escape velocity from the Earth's surface is υ. The escape velocity from the surface of another planet having

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by JeeNeetQnA in Ray Optics and Optical Instruments asked Sep 14 31 views

A convex lens 'A' of focal length 20 cm and a concave lens 'B' of focal length 5 cm are kept along the same axis

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by JeeNeetQnA in Electrostatics asked Sep 14 12 views

Consider the following statements (A) and (B) and identify the correct answer. (A) A zener diode is connected in reverse

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by JeeNeetQnA in Ray Optics and Optical Instruments asked Sep 14 23 views

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

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by JeeNeetQnA in Electrostatics asked Sep 14 12 views

Polar molecules are the molecules :

Polar molecules are the molecules : (1) having zero dipole moment. (2) having permanent electric dipole moment. (3) acquire a dipole moment only when magnetic field is absent. (4) acquire a dipole moment only in the presence of electric field due to ...

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by JeeNeetQnA in Oscillations and Waves asked Sep 14 35 views

A body is executing simple harmonic motion with a frequency 'n', the frequency of its potential energy is :

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by Misbah Kazi in Rotational Motion asked Aug 28 13 views

what is average velocity of parti in one complete vibrationcle executing SHM

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