NEET Physics: Questions 2068 - 2071 of 2098

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Question number: 2068

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

Appeared in Year: 2016

MCQ▾

Question

One mole of an ideal monatomic gas undergoes a process described by the equation PV3=constant . The heat capacity of the gas during this process is –

Choices

Choice (4) Response

a.

R

b.

52R

c.

2R

d.

32R

Question number: 2069

» Physics and Measurement » Dimensions of Physical Quantities

Appeared in Year: 2016

MCQ▾

Question

Planck’s constant (h), speed of light in vacuum (c) and Newton’s gravitational constant (G) are three fundamental constants. Which of the following combinations of these has dimension of length?

Choices

Choice (4) Response

a.

Gch32

b.

hcG32

c.

hcG

d.

hGc52

Question number: 2070

» Properties of Solids & Liquids » Heat Transfer » Convection

Appeared in Year: 2016

MCQ▾

Question

Two identical bodies are made of a material for which the heat capacity increases with temperature. One of these is at 100°C , while the other one is at 0°C. If the two bodies are brought into contact, then assuming no heat loss, the final common temperature is –

Choices

Choice (4) Response

a.

More then 50°C

b.

Less than 50°C but greater than 0°C

c.

50°C

d.

0°C

Question number: 2071

» Electrostatics » Capacitors

MCQ▾

Question

A parallel – plate capacitor of area A, plate separation d and capacitance C is filled with four dielectric materials having dielectric constant k1,k2,k3 and k4 as shown in the figure below. If a signal dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is given by,

A parallel plate capacitor of four dielectric materials

A Parallel Plate Capacitor of Four Dielectric Materials

In figure a parallel plate capacitor of four dielectric material is given.

Choices

Choice (4) Response

a.

1k=1k1+1k2+1k3+32k4

b.

k=23(k1+k2+k3)+2k4

c.

2k=3k1+k2+k3+1k4

d.

k=k1+k2+k3+3k4

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