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A particle of charge q and mass m is moving with velocity –v_i (v ≠ 0) towards a large screen placed in the Y – Z plane at a distance d

A particle of charge q and mass m is moving with velocity –vi (v ≠ 0) towards a large screen placed in the Y - Z plane at a distance d.... View Article

A sound source S is moving along a straight track with speed v

A sound source S is moving along a straight track with speed v, and is emitting, the sound of frequency vO (see figure). An observer is standing... View Article

Charges Q₁ and Q₂ are at points A and B of a right angle triangle OAB (see figure).

Charges Q1 and Q2 are at points A and B of a right angle triangle OAB (see figure). The resultant electric field at point O is perpendicular to... View Article

An AC circuit has R = 100Ω, C = 2μF and L = 80 mH, connected in series. The quality factor of the circuit is

1) 20 2) 2 3) 0.5 4) 400 Answer: (2) Q = ωL / R ω = 1 / √LC = L / R √LC = (1 / R) √L / C = (1 / 100) √(80... View Article

An object of mass m is suspended at the end of a massless wire of length L and area of cross-section A

An object of mass m is suspended at the end of a massless wire of length L and area of cross-section A. Young modulus of the material of the wire... View Article

Molecules of an ideal gas are known to have three translational degrees of freedom

Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom. The gas is maintained... View Article

An insect is at the bottom of a hemispherical ditch of radius 1 m

An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts slipping after it is at height h from the... View Article

A point-like object is placed at a distance of 1 m in front of a convex lens of the focal length of 0.5 m.

A point-like object is placed at a distance of 1 m in front of a convex lens of the focal length of 0.5 m. A plane mirror is placed at a distance... View Article

In the figure below, P and Q are two equally intense coherent sources

In the figure below, P and Q are two equally intense coherent sources emitting radiation of wavelength 20 m. The separation between P and Q is 5... View Article

An electron is moving along +x direction with a velocity

An electron is moving along +x direction with a velocity of 6 × 106 ms–1. It enters a region of the uniform electric field of 300... View Article

Identify the correct output signal Y

Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B. Answer: None of the options is... View Article

A clock has a continuously moving second’s hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms^–2) is of the order of

1) 10–3 2) 10–1 3) 10–2 4) 10–4 Answer: (1) a = v2 / R v = 2πR / 60 = [4π2 . R2] / [602 . R] = [4π2R /... View Article

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Archives

A particle of charge q and mass m is moving with velocity –v_i (v ≠ 0) towards a large screen placed in the Y – Z plane at a distance d

A sound source S is moving along a straight track with speed v

Charges Q₁ and Q₂ are at points A and B of a right angle triangle OAB (see figure).

An AC circuit has R = 100Ω, C = 2μF and L = 80 mH, connected in series. The quality factor of the circuit is

An object of mass m is suspended at the end of a massless wire of length L and area of cross-section A

Molecules of an ideal gas are known to have three translational degrees of freedom

An insect is at the bottom of a hemispherical ditch of radius 1 m

A point-like object is placed at a distance of 1 m in front of a convex lens of the focal length of 0.5 m.

In the figure below, P and Q are two equally intense coherent sources

An electron is moving along +x direction with a velocity

Identify the correct output signal Y

A clock has a continuously moving second’s hand of 0.1 m length. The average acceleration of the tip of the hand (in units of ms^–2) is of the order of

If the potential energy between two molecules is given by

You are given that Mass of ⁷₃Li = 7.0160u

A satellite is in an elliptical orbit around a planet P.

Shown in the figure is a hollow ice cream cone

For the given input voltage waveform

An electron, a doubly ionized helium ion (He⁺⁺) and a proton are having the same kinetic energy

A screw gauge has 50 divisions on its circular scale

Four point masses, each of mass m, are fixed at the corners of a square of side l.