NEET 2013 | Properties of Matter Question 53 | Physics

NEET 2013

MCQ (Single Correct Answer)

-1

The molar specific heats of an ideal gas at constant pressure and volume are denoted by C_p and C_v, respectively. If $$\gamma $$ = $${{{C_p}} \over {{C_v}}}$$ and R is the universal gas constant, then C_v is equal to

$${{\left( {\gamma - 1} \right)} \over R}$$

$$\gamma R$$

$${{1 + \gamma } \over {1 - \gamma }}$$

$${R \over {\left( {\gamma - 1} \right)}}$$

NEET 2013

MCQ (Single Correct Answer)

-1

The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?

length = 200 cm, diameter = 2 mm

length = 300 cm, diameter = 3 mm

length = 50 cm, diameter = 0.5 mm

length = 100 cm, diameter = 1 mm

AIPMT 2012 Mains

MCQ (Single Correct Answer)

-1

A slab of stone of area 0.36 m² and thickness 0.1 m is exposed on the lower surface to steam at 100^oC. A block of ice at 0^oC rests on the upper surface of the slab. In one hour 4.8 kg of ice is melted. The thermal conductivity of slab is
(Given latent heat of fusion of ice = 3.36 $$ \times $$ 10⁵ J kg^$$-$$1)

1.24 J/m/s/^oC

1.29 J/m/s/^oC

2.05 J/m/s/^oC

1.02 J/m/s/^oC

AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

If the radius of a star is R and it acts as a black body, what would be the temperature of the star, in which the rate of energy production is Q?

$${Q \over {4\pi {R^2}\sigma }}$$

$${\left( {{Q \over {4\pi {R^2}\sigma }}} \right)^{ - 1/2}}$$

$${\left( {{{4\pi {R^2}Q} \over \sigma }} \right)^{1/4}}$$

$${\left( {{Q \over {4\pi {R^2}\sigma }}} \right)^{1/4}}$$

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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