AIIMS (All India Institute of Medical Sciences) Physics: Questions 259 - 263 of 500

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Question number: 259

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

MCQ▾

Question

The current passing through a choke coil of 12 H is decreasing at the rate ofEquation . The emf developing across the coil is –

Choices

Choice (4) Response

a.

6 V

b.

– 6 V

c.

12 V

d.

– 12 V

Question number: 260

» Kinematics » Projectile Motion

MCQ▾

Question

The velocity of projection of an oblique projectile is Equation The horizontal range of the projectile is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 261

» Electrostatics » Conductors and Insulators

MCQ▾

Question

A conducting sphere of radius 20 cm is charged withEquation . Another uncharged sphere of radius 60 cm is allowed to touch it for some time. After that if the sphere are separated, then surface density of charged on the spheres will be in the ratio of:

Choices

Choice (4) Response

a.

1: 3

b.

3: 1

c.

1: 2

d.

2: 1

Question number: 262

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

MCQ▾

Question

A string in a musical instrument is 80 cm long and its fundamental frequency is 1000 Hz. If a frequency of 1400 Hz is to be produced, then required length of string is –

Choices

Choice (4) Response

a.

62.4 cm

b.

57.1 cm

c.

65 cm

d.

72.3 cm

Question number: 263

» Gravitation » Kepler's Laws of Planetary Motion

MCQ▾

Question

The distance of two planets from the sun are in the ratio 3: 1. Assuming that they are moving in circular orbits, what will be the ratio of their time periods?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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