Solution of I E Irodov s Problems in General Physics Vol 1 Raj Kumar Sharma B Tech IIT ( ISM ) Dhanbad RK Publications for IIT JEE Physics Olympiad

284 Pages·2018·43.11 MB·English

Solution of

IE IRODOV'S

Problems in General

PHYSICS
\.

Raj Kumar Sharma
Vol. 1 B.Tech IIT(ISM Dhanbad)

RK Publications
CONTENTS

ENO. Page No.

PART ONE. PHYSICAL FUNDAMENTALS OF MECHANICS

Li Kinematics
12, The Fundamental Equation of Dynamics

13, Laws of Conservation of Energy.Momentumand Angular Momentum
14 Univers Gravitation

15. Dynamics of a Solid Body

1.6, Elastic Deformations of a Solid Body
17. Hydrodynamics
L8, Relativistic Mechanics

PART TWO. THERMODYNAMICS AND MOLECULAR PHYSICS

21, Equation ofthe Gas State. Processes
22, The First Law of Thermodynamics. Heat Capacity

23. Kinetic Theory of Gases Boltzmann's Law and Maxwell Distribution
24, The Second Law of Thermodynamics. Entropy

25. Liguids. Capillary Etets

26, Phase Transformations

2.7,___Transport Phenomena

143
137

170

189
199
2is
230
282
261

am
“Physical Fundamentals of Mechanics”

14
1

12

Part One

KINEMATICS,

Method Relative approach)
—v

oor Boat 7
r ) Mean vty = 224 Va) 7”

s ee

eS esteem

, oo
ao

scpeann wend
=e aN
Fa , .
Serene as
tit tts nconnsreamiouney eno _ -

‘och apn trata boat hte
{reo osmeybocae els estat

Fence ale comet jouney = 2s
a

rents susshmmn Ane

tome
paces
Naat
FET

tt tance vavlby pita.
“Tenn aan fitouey sf

8

“Tne akin soon jounoys
4

4s

mmr 08 en

ane

(0) Vloty wibe maximum when ope of
‘Sty eurve wb maximum artis seen in

‘sraghpart approsanaaly.

ve
14-10

(@)instartenoous vlety may ogao
‘Reanveocty when spoof nearing fia
‘hainl pt wl be same as ope at park

1S
ape

eocyo wth respect tA
ran
Poon wth respect 1A

16

Pari Bw becalde wth velocity of 8
vith respect Ate cle onars observer
Fencorlave vosty shade apart
torlave poston

Ten Fallow
Vounon
oe

Stuvandnonn drcton'sy xs.

Meeetsione

Yong =30i:
150860 +158 60)

Vacs Ve Voor

15086030) +15sin60j

Wace 15 0560-30) + Sin SOF
= 40bn/ hr

one fos.
Method -2(ector addon Method)

feo Voce
Vos Wie Wee Frcs gX9-O)
40k hr

Page -2
See 10 Ans

Ssin60
30+ 15e086

ete 3. a)

| < dd
“VW VW

os sore =
ar
“iw cos ren gar

Where V= Speed of boat wet ver
Ws Speedos water oath,

Bost

ait

“Tmo o reach gan at same panty boat B.
nest
a oo

‘eo given =n

18:
44,4
te ghabed 1
444s
fom 7525 "Bu ‘Time to cross the river : f= —————
a aiote pom Telcos

Page 3
4
man. 9 a
seca en re
Saudis oaiaates
Sink etic Stnete
&
memantine S00
dencto-MesMaecotand-0

Vee
sino tee 23
ono
‘gl made boat we fw vl of water
Selo ‘as

Metnod:2 (Vector addon graph method)

AO. sa

+¥,_ Hence Oil akon any
‘ue benwon (0 180) Ronco we can awa
sacri oat ent |

“Then hare are some esas 35s

eoanten!
ha 2
Pod
Soon = 100" 60" 120" aos.

fee acoseratonaf partie) ands
Gooc0r0
Fase vlcty oar tart 2)

ange between wo veocty
ros not change time because elahve
seosrsion be.

Sen

‘Distance betwen vo partic at iets

= Vay2= sia) = 22m poe,

Method: 1 (Vector application)
final eid ny reston of oth parle are

ence vertical veloc ofboh priles at timet
wea sane ten

Shoe LY, =F
mege=0

‘wetnod2 (Graphical appieaton)
Since LY, 2048 =50
a=90-9

tana-=tan90-p)

tina =cot

fwnatinp=1 4)
ase:

(end ~

ts 0
tality tet (-3)-7
Vxt=Tx 0125 pos.

Method: 1 (Vector application)

Y

Kh _X&

‘ine parle Ahoaing to partie B nd Bto
Condon.
New poston of al parce a= iss gue.

\"
a

‘ain polin ofl pari att= 2s as
fue.

‘asin postion tt 3 and so.on

‘Sine at ny ie al parti ravel am
fétance hen teach moment of tinea
‘tice wb al equatral ig. Thenby
‘Symmetry you can say at partle wll be
‘et at congo tingle then path ofeach

‘tie wa os

Thontine jong parle AanéPmake 30°

srt nett atom

wl nays cantata aque vcs 30"
(ive sn because ris ereasing fancn,
Frallyr= Owhueiniatr= aS then

Suppow al inet, tance WA ands
“Tanta cfcorement of:

fo evsucnen
nt eaaeu flcono tt.)

ice font rt one tan fd

sogcre us tet decrement fiance
teonen bah eton of, Suppo i
to

{foe [evento
onaev feo

fowant

Pattie vatunin

oc)
=
Wh fame of earth: us
‘Wan event (wl happen

Velosyoftainis uy =u t=

‘Since event 2 wllb happen ater tin hen stat
‘Distance waved by headlight (A)intime =

Distance vavaes by heaton (Bin ine =

mat

il

(a) For observer ined tit alt= 25. velo of
at

‘Acceleration of ott wrt i= 10+ 4.2 1.2
‘Then acne timo i akan by bot to reach at

me
fae
aredenze tors ams
ma Oye grand 20
Vetara-2amis
Dalton tint 07sec
sue hee
=B
pe sez4en-de10(7 7m ame
a Date aed yt
wwe atch ete agate
porrno eet 2snausbotpontan td q
tone ps
‘oare vy tees tone
Cisne avtedty rei mines Lom
ovmtpetter
peas
wud i
wot Cisne toed =2-0288+07 8 13m
ae
24
220 amie ns

Page=-7
Method (Relative veloc)

i secant

‘aero tance vloty fap wil
Vieme-v,sneeo
Meme tian

nviongle 80:

Wet %4
ere

AM EAMt