NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1539 - 1543 of 5119

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Question 1539

Question MCQ▾

Consider the decay of radium- (Ra226) atom into an alpha particle and radon- (Rn222) . Then, what is the mass defect of the reaction-

Mass of radium -226 atom = 226.0256 u

Mass of radon - 222 atom = 222.0715 u

Mass of helium - 4 atom = 4.0026 u

Choices

Choice (4)Response

a.

0.0083 u

b.

0.0053 u

c.

0.083 u

d.

Question does not provide sufficient data or is vague

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Question 1540

Question MCQ▾

Nuclear radius of8 O16 is 3 × 10-15 m. Find the density of nuclear matter.

Choices

Choice (4)Response

a.

1.66 × 1017 kgm3

b.

7.5 × 1017 kgm-3

c.

5.7 × 1017 kgm3

d.

2.3 × 1017 kgm-3

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Question 1541

Question MCQ▾

The pressure P, volume V and temperature T of a gas in the jar A and the other gas in the jar B at pressure 2 P , volume and temperature 2T, then the ratio of the number of molecules in the jar A and B will be

Choices

Choice (4)Response

a.

1: 2

b.

4: 1

c.

2: 1

d.

1: 1

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Question 1542

Question MCQ▾

The relation between the gas pressure P and average kinetic energy per unit volume E is

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 1543

Question MCQ▾

7 calories of heat are required to raise the temperature 2 moles of an ideal gas at constant pressure from 30°C to 35°C. The amount of heat required to raise the temperature of same gas through the same range (30° C to 35° C) at constant volume (R = 2 Cal/mole K)

Choices

Choice (4)Response

a.

70 Cal

b.

30 Cal

c.

50 Cal

d.

90 Cal

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