NEET 2013 (Karnataka) | Properties of Matter Question 53 | Physics

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

A fluid is in streamline flow across a horizontal pipe of variable area of cross section. For this which of the following statements is correct?

The velocity is maximum at the narrowest part of the pipe and pressure is maximum at the widest part of the pipe.

Velocity and pressure both are maximum at the narrowest part of the pipe.

velocity and pressure both are maximum at the widest part of the pipe.

The velocity is minimum at the narrowest part of the pipe and the pressure is minimum at the widest part of the pipe.

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

The density of water at 20^oC is 998 kg/m³ and at 40^oC is 992 kg/m³. The coefficient of volume expansion of water is

3 $$ \times $$ 10^$$-$$4/^oC

2 $$ \times $$ 10^$$-$$4/^oC

6 $$ \times $$ 10^$$-$$4/^oC

10 $$ \times $$ 10^$$-$$4/^oC

NEET 2013

MCQ (Single Correct Answer)

-1

A piece of iron is heated in a flame. It first becomes dull red then becomes reddish yellow and finally turns to white hot. The correct explanation for the above observation is possible by using

Kirchhoff's Law

Newton's Law of cooling

Stefan's Law

Wien's displacement Law

NEET 2013

MCQ (Single Correct Answer)

-1

The wettability of a surface by a liquid depends primarily on

density

angle of contact between the surface and the liquid

viscosity

surface tension

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Biology

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution