AIPMT 2014 | Properties of Matter Question 49 | Physics

AIPMT 2014

MCQ (Single Correct Answer)

-1

Certain quantity of water cools from 70^oC to 60^oC in the first 5 minutes and to 54^oC in the next 5 minutes. The temperature of the surroundings is

45^oC

20^oC

42^oC

10^oC

AIPMT 2014

MCQ (Single Correct Answer)

-1

Copper of fixed volume V is drawn into wire of length $$l$$. When this wire is subjected to a constant force F, the extension produced in the wire is $$\Delta $$$$l$$. Which of the following graphs is a straight line ?

$$\Delta $$$$l$$ versus 1/$$l$$

$$\Delta $$$$l$$ versus $$l$$²

$$\Delta $$$$l$$ versus 1/$$l$$²

$$\Delta $$$$l$$ versus $$l$$

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

If the ratio of diameters, lengths and Young's modulus of steel and copper wires shown in the figure are p, q and s respectively, then the corresponding ratio of increase in their lengths would be

NEET 2013 (Karnataka) Physics - Properties of Matter Question 52 English

NEET 2013 (Karnataka) Physics - Properties of Matter Question 52 English

$$\left( {{{5q} \over {7s{p^2}}}} \right)$$

$$\left( {{{7q} \over {5s{p^2}}}} \right)$$

$$\left( {{{2q} \over {5sp}}} \right)$$

$$\left( {{{7q} \over {5sp}}} \right)$$

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Two metal rods 1 and 2 of same lengths have same temperature difference between their ends. Their thermal conductivities are K₁ and K₂ and cross sectional areas A₁ and A₂, respectively. If the rate of heat conduction in 1 is four times that in 2, then

K₁A₁ = 4K₂A₂

K₁A₁ = 2K₂A₂

4K₁A₁ = K₂A₂

K₁A₁ = K₂A₂

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

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