NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 1490 - 1494 of 2142

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Question number: 1490

» Atoms and Nuclei » Binding Energy Per Nucleon

MCQ▾

Question

The mass of helium nucleus is less than that of its constituent particles by 0.03 a. m. u. The binding energy per nucleon of 2 He 4 nucleus will be,

Choices

Choice (4) Response

a.

21 MeV

b.

3.5 MeV

c.

14 MeV

d.

7 MeV

Question number: 1491

» Thermodynamics » Thermal Equilibrium

MCQ▾

Question

Two Carnot engines A and B are operated in succession. The first one, A receives heat from a source at T 1 = 800 K and rejects to sink at T 2 K. The second engine B receives heat rejected by the first engine and rejects to another sink at T 3 =300K. If the work outputs of two engines are equal, then the value of T 2 will be

Choices

Choice (4) Response

a.

100K

b.

300K

c.

700 K

d.

550K

Question number: 1492

» Atoms and Nuclei » Binding Energy Per Nucleon

MCQ▾

Question

Deuterium is an isotope of hydrogen having a mass of 2.01470 a. m. u. Find binding energy in MeV of this isotope,

Choices

Choice (4) Response

a.

1.741 MeV

b.

2.741 MeV

c.

2.174 MeV

d.

0.741 MeV

Question number: 1493

» Thermodynamics » Concept of Temperature

MCQ▾

Question

The temperature of sink of Carnot engine is 27°C and Efficiency of engine is 40%. Then temperature of source

Choices

Choice (4) Response

a.

127°C

b.

227ºC

c.

27ºC

d.

327°C

Question number: 1494

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

From the following statements, concerning ideal gas at any given temperature T, select the correct one (s)

(1) The coefficient of volume expansion at constant pressure is same for all ideal gases

(2) In a gaseous mixture, the average translational kinetic energy of the molecules of each component is same

(3) The mean free path of molecules increases with the decrease in pressure

(4) The average translational kinetic energy per molecule of oxygen gas is 3KT (K being Boltzmann constant)

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1, 2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

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