KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 96 - 99 of 268

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Question number: 96

» Properties of Solids & Liquids » Bernoulli's Principle and Its Applications

Appeared in Year: 2014

MCQ▾

Question

Water containing air bubbles flows without turbulence through a horizontal pipe which has a region of narrow cross-section. In this region the bubbles

Choices

Choice (4) Response

a.

move with greater speed and are larger in size than in the rest of the pipe

b.

move with lesser speed and are smaller than in the rest of the pipe

c.

move with greater speed and are smaller than in the rest of the pipe

d.

move with lesser speed and are of the same size as in the rest of the pipe

Question number: 97

» Current Electricity » Series and Parallel Combinations of Resistors

Appeared in Year: 2013

MCQ▾

Question

The circuit shown has been connected for a long time. The voltage across the capacitor is

Circuit diagram consist of a capacitor and three resistor

Circuit Diagram Consist of a Capacitor and Three Resistor

In figure combination of three resistors and a capacitor connected with a battery of 6 V.

Choices

Choice (4) Response

a.

2.4 V

b.

2.0 V

c.

4.0 V

d.

1.2 V

Question number: 98

» Laws of Motion » Laws of Friction

Appeared in Year: 2013

MCQ▾

Question

A plank is resisting on a horizontal ground in the northern hemispherical of the Earth at a 450 latitude. Let the angular speed of the Earth be ω and its radius re. The magnitude of the frictional force on the plank will be,

Choices

Choice (4) Response

a.

mreω2

b.

mreω22

c.

mreω22

d.

Zero

Question number: 99

» Oscillations and Waves » Simple Pendulum

Appeared in Year: 2012

MCQ▾

Question

A simple pendulum is released from rest at the horizontally stretched position. When the string makes an angle θ with the vertical, the angle ϕ which the acceleration vector of the bob makes with the string is given by,

A simple pendulum making an angle (theta)

A Simple Pendulum Making an Angle (Theta)

In figure a simple pendulum made an angle (theta) with the vertical.

Choices

Choice (4) Response

a.

ϕ=π2

b.

ϕ=0

c.

ϕ=tan1(2tanθ)

d.

ϕ=tan1(tanθ2)

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