# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1489 - 1494 of 2184

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## Question number: 1489

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MCQ▾

### Question

To double the volume of a given mass of an ideal gas at 27ºC keeping the pressure constant, one must raise the temperature in degree centigrade to

### Choices

Choice (4) Response

a.

327

b.

54

c.

600

d.

270

## Question number: 1490

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MCQ▾

### Question

Root mean square velocity of a particle is v at pressure P. If pressure is increased two times, then the r. m. s. velocity becomes

### Choices

Choice (4) Response

a.

v

b.

2 v

c.

0.5 v

d.

3 v

## Question number: 1491

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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.

7 MeV

c.

3.5 MeV

d.

14 MeV

## Question number: 1492

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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.

550K

b.

300K

c.

100K

d.

700 K

## Question number: 1493

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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.

0.741 MeV

b.

2.174 MeV

c.

2.741 MeV

d.

1.741 MeV

## Question number: 1494

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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.

27ºC

b.

127°C

c.

227ºC

d.

327°C