# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1203 - 1205 of 2184

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## Question number: 1203

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MCQ▾

### Question

A lead bullet at 27° C just n tits when, stopped by an obstacle. Assuming that 25 % of heat is absorbed by the obstacle, then the velocity of the bullet at the time of striking (M. P. of lead = 327°C, specific heat of lead = 0.03 cal/gm °C, latent heat of fusion of lead = 6 cal/gm and J = 4.2 joule/cal)

### Choices

Choice (4) Response

a.

1230 m/sec

b.

410 m/sec

c.

307.5 m/sec

d.

All of the above

## Question number: 1204

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MCQ▾

### Question

Which of the following figure represents variation of particle momentum and the associated de-Broglie wavelength?

### Choices

Choice (4) Response

a. Plot of Momentum vs De-Broglie Wavelength – Choice A Figure shows the plot of particle momentum and the associated de-Broglie wavelength.

b. Plot of Momentum vs De-Broglie Wavelength – Choice B Figure shows the plot of particle momentum and the associated de-Broglie wavelength.

c. Plot of Momentum vs De-Broglie Wavelength – Choice C Figure shows the plot of particle momentum and the associated de-Broglie wavelength.

d. Plot of Momentum vs De-Broglie Wavelength – Choice D Figure shows the plot of particle momentum and the associated de-Broglie wavelength.

## Question number: 1205

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MCQ▾

### Question

What should be the size of the aperture of the objective of telescope which can just resolve the two stars of angular width of 10 -3 degree by light of wavelength 5000Å?

### Choices

Choice (4) Response

a.

3.5 km

b.

3.5 m

c.

3.5 mm

d.

3.5 cm