NEET Physics: Questions 1289 - 1293 of 2098

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Passage

Read the passage given below and answer the questions that follows:

In the figure n mole of a monoatomic ideal gas undergo the process ABC as shown in the P-V diagram. The process AB is isothermal and BC is isochoric. The temperature of the gas at A is T 0. Total heat given to the gas during the process ABC is measured to be Q.

Graph of pressure vs volume (2V and 6V)

Graph of Pressure vs Volume (2V and 6V)

In above figure we show expansion of monoatomic molecule with change in pressure.

Question number: 1289 (3 of 3 Based on Passage) Show Passage

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

Heat absorbed by the gas in the process BC

Choices

Choice (4) Response

a.

nRT 0

b.

6nRT 0

c.

2nRT 0

d.

3nRT 0

Question number: 1290

» Wave Optics » Diffraction Due to a Single Slit Width of Central Maximum

MCQ▾

Question

A slit of size 0.15 cm is placed at 2.1 m from a screen. On illuminating it by a light of wavelength 5 × 10 -5 cm, the width of central maxima will be

Choices

Choice (4) Response

a.

70 mm

b.

0.14 cm

c.

1.4 mm

d.

0.14 mm

Question number: 1291

» Properties of Solids & Liquids » Latent Heat

MCQ▾

Question

A bullet moving with a uniform velocity v, stops sudden after hitting the target and the whole mass melts be m, specific heat S, initial temperature 28°C, melting point 375 °C and the latent heat L. Then v is given by

Choices

Choice (4) Response

a.

mL=mS(37535)+12mv2J

b.

mS(57525)+mL=12mv2J

c.

mS(37528)mL=12mv2J

d.

mS(47525)+mL=12mv2J

Question number: 1292

» Atoms and Nuclei » Bohr Model

MCQ▾

Question

According to Bohr’s theory the moment of momentum of an electron revolving in second orbit of hydrogen atom will be,

Choices

Choice (4) Response

a.

2πh

b.

πh

c.

hπ

d.

πh

Question number: 1293

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

During the melting of a slab of ice at 273 K and one atmospheric pressure

(1) Positive work is done on the ice-water system by the atmosphere

(2) Positive work is done by ice-water system on the atmosphere

(3) The internal energy of the ice-water system increases

(4) The internal energy of the ice-water system decreases

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 ate correct

c.

2 and 4 are correct

d.

1 and 3 are correct

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