KVPY Stream-SA (Class 11) Physics: Questions 54 - 55 of 242

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Question number: 54

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

Appeared in Year: 2013

MCQ▾

Question

A tall tank filled with water has an irregular shape as shown. The wall CD makes an angle of 450 with the horizontal; the wall AB is normal to the base BC. The lengths AB and CD are much smaller than the height h of water (figure not to scale).

 A tall tank filled with water

a Tall Tank Filled With Water

Figure shows a tall tank filled with water has an irregular shape as shown. P1, P2 and P3 are the pressure on sides AB, BC and CD respectively.

Let P1, P2 and P3 be the pressures exerted by the water on the wall AB, base BC and the wall CD respectively. Density of water is ρ and g is acceleration due to gravity. Then, approximately,

Choices

Choice (4) Response
a.

P1=0,P3=P22

b.

P1=P3=P22

c.

P1=P3=0,P2=hρg

d.

P1=P2=P3

Question number: 55

» Magnetic Effects of Current and Magnetism » Cyclotron

MCQ▾

Question

An electron enters a chamber in which a uniform magnetic field is present as shown

Chamber of uniform magnetic field

Chamber of Uniform Magnetic Field

In figure direction of the uniform magnetic field in the chamber and direction of the electron enter in the chamber are shown.

An electric field of appropriate magnitude is also applied so that the electron travels undeviated without any change in its speed through the chamber. We are ignoring gravity. Then, the direction of the electric field is,

Choices

Choice (4) Response
a.

Normal to the plane of the paper and coming out of the plane of the paper

b.

Opposite to the direction of the electron’s motion

c.

Opposite to the direction of the magnetic field

d.

Normal to the plane of the paper and into the plane of the paper

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