KVPY Stream SB-SX (Class 12 & 1st Year BSC) Physics: Questions 231 - 234 of 250

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Question number: 231

» Oscillations and Waves » Simple Pendulum

Appeared in Year: 2014

MCQ▾

Question

The maximum value attained by the tension in the string of a swinging pendulum is four times the minimum value it attains. There is no slack in the string. The angular amplitude of the pendulum is –

Choices

Choice (4) Response

a.

600

b.

450

c.

300

d.

900

Question number: 232

» Electrostatics » Capacitors

Appeared in Year: 2014

MCQ▾

Question

Two identical parallel plate capacitors of capacitance C each are connected in series with a battery of emf, E as shown. If one of the capacitors is now filled with a dielectric of dielectric constant k, the amount of charge which will flow through the battery is (neglect internal resistance of the battery)

Circuit diagram of two capacitors and a battery

Circuit Diagram of Two Capacitors and a Battery

In figure a circuit diagram consist of two capacitors and a battery is shown.

Choices

Choice (4) Response

a.

(k1)2(k+1)CE

b.

k2k+2CE

c.

(k+1)2(k1)CE

d.

k+2k2CE

Question number: 233

» Properties of Solids & Liquids » Application of Surface Tension

MCQ▾

Question

A air bubble is formed at the bottom of a lake. When the bubble rises to the surface, its radius increases 3 times. The depth of the lake at that spot is –

Choices

Choice (4) Response

a.

h=1dg[13P0+8Tr]

b.

h=2dg[13P0+8Tr]

c.

h=2dg[13P0+9Tr]

d.

h=2dg[27P0+9Tr]

Question number: 234

» Center of Mass » Centre of Mass of a Rigid Body

Appeared in Year: 2015

MCQ▾

Question

The distance between the vertex and the center of mass of a uniform solid planar circular segment of angular size θ and radius R is given by.

A uniform solid planar circular segment.

A Uniform Solid Planar Circular Segment.

In figure a uniform solid planar circular segment of angular size (theta) and radius R is shown.

Choices

Choice (4) Response

a.

43Rsin(θ2)θ

b.

23Rcos(θ)

c.

43Rcos(θ2)

d.

Rsin(θ2)θ

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