Tuesday, March 21, 2017

অধ্যায় -১: পদার্থবিজ্ঞান পদার্থ নবম-দশম শ্রেণি

beg-`kg †kªwY
welq: c`v_©weÁvb
Aa¨vq -1: c`v_©:
µwgK
bs:
weÁvbx‡`i bvg:
Rb¥ - g„Zz¨ mvj I ‡`k
Avwe®‹v‡ii welq / Dcvwa / gšÍe¨:
01.
‡_wjm&
wLª: c~:
(624-569)
MÖxm
o   m~h©MÖnY m¤úwK©Z fwel¨ØvYx|
o   e„‡Ëi e¨vm e„ˇK mgwØLwÛZ K‡i|
o   ‡jvW‡÷v‡bi †PŠ¤^K ag© m¤ú‡K© Rvb‡Zb|
02.
wc_v‡Mvivm
wLª: c~:
(527-497)
MÖxm
o   AvMyb, cvwb, gvwU I evq~ GB PviwU †gŠ‡ji aviYv|
o   K¤úgvb Zv‡ii Dci Zvui KvR AwaK ¯’vqx| eZ©gv‡b ev`¨hš¿ I msMxZ wel‡q †h †¯‹j i‡q‡Q Zv ÔZv‡ii K¤úbÕ-welqK Zvui AbymÜv‡bi AvswkK Ae`vb|
o   me welq‡K m~‡Îi mvnv‡h¨ cÖKvk Ki‡Z †P‡qwQ‡jb|
03.
‡W‡gvwµUvm&
wLª: c~:
(460-370)
MÖxm
o   c`v‡_©i AwefvR¨ GKK cigvYy|
o   `vk©wbK|
04.
AvwK©wgwWm&
wLª: c~:
(287-212)
MÖxm
o   avZzi †fRvj wbY©‡qi m~Î|
o   wjfv‡ii bxwZ I Zi‡j wbgw¾Z e¯‘i Ici wµqvkxj DaŸ©g~Lx e‡ji m~Î|
o   ‡Mvjxq `c©‡bi mvnv‡h¨ m~‡h©i iwk¥ †K›`ªxf~Z K‡i AvMyb aiv‡bvi †KŠkj|
o   MwYZwe`|
05.
A¨vwi÷vKvm©
wLª: c~:
(460-370)
MÖxm
o   cÖvPxb c„w_exi me©‡kªô ‡R¨vwZwe©`|
o   m~h©B †mŠiRM‡Zi †K›`ª|
o   mKj MÖn¸‡jv m~h©‡K †K›`ª K‡i Zvi Pviw`‡K Nyi‡Q|
06.
A¨vwi÷Uj
wLª: c~:
(384-322)
MÖxm
o   m~h©, MÖn I b¶Î¸‡jv w¯’i c„w_ex‡K †K›`ª K‡i Nyi‡Q|
o   Ávb weÁv‡bi mKj welq¸‡jv wb‡q wPšÍv K‡ib|
07.
Be‡b Avj nvB_vg
wLª: c~:
(965-1039)
Avie
o   Av‡jvK Z‡Ë¡i  D‡j­L‡hvM¨ Ae`vb|
08.
Avj& nv‡Rb
wLª: c~:
(965-1038)
BivK
o   Av‡jvK Z‡Ë¡i  D‡j­L‡hvM¨ Ae`vb|
o   e¯‘ †_‡K Avgv‡`i †Pv‡L Av‡jv Av‡m e‡jB Avgiv †`L‡Z cvB|
o   AvuZkx KvuP wb‡q cix¶vi Øviv wZwb DËj †j‡Ýi AvaywbKvq‡bi KvQvKvwQ hvb|
09.
U‡jwg
 (127-151)
wgki
o   wZwb wek¦vm Ki‡Zb ‡h, †Kvb e¯‘ †`Lvi Rb¨ †PvL wb‡R Av‡jvK iwk¥ cvVvq|
10.
Avj& gvmy`x
(896-956)
Avie
o   GbmvB‡K¬vwcwWqv ˆZwi K‡ib cÖK„wZi BwZnvm wb‡q| G‡Z evqyK‡ji D‡j­L wQj|
11.
iRvi †eKb
(1214-1294)
o   cix¶vg~jK ‰eÁvwbK c×wZi cÖe³v|
12.
wjDbv‡`©v `v wfwÂ
(1452-1519)
BZvwj
o   D‡ovRvnv‡Ri g‡Wj ˆZwi K‡ib|
o   wKQy mvaviY hš¿cvwZ D™¢veb K‡ib|
13.

M¨vwjwjI
wLª: c~:
 (1564-1642) BZvwj
o   wZwbB cÖ_g ‡`Lvb ‡h, ch©‡e¶Y, cix¶Y Ges myk„•Ljfv‡e †fŠZ ivwki msÁv cÖ`vb I G‡`i g‡a¨ m¤úK© wbav©iY, ˆeÁvwbK K‡g©i g~jwfwË|
o   MvwYwZK ZË¡ wbg©vY I cix¶vi gva¨‡g Gi mZ¨Zv hvPvB Gi ‰eÁvwbK aviv m~PYv K‡ib|
o   cošÍ e¯Íyi m~Î cÖ`vb K‡ib|
o   ¯§„wZwe`¨vi wfwË ¯’vcb K‡ib|
o   miY, MwZ, Z¡iY I mgq BZ¨vw`i msÁv cÖ`vb K‡ib|
14.
Wv: wMjevU©
(1540-1603) Bsj¨vÛ
o   Pz¤^KZ¡ wb‡q D‡j­L‡hvM¨ M‡elYv I ZË¡ cÖ`vb K‡ib|
15.
‡mœj
(1591-1626) Rvg©vwb
o   Av‡jvi cÖwZmi‡Yi m~Î Avwe®‹vi K‡ib|
16.
nvB‡Mb
(1626-1695) †b`vij¨vÛ
o    †`vjKxq MwZ ch©v‡jvPbv|
o   Nwoi hvwš¿K †KŠk‡ji weKvk|
o   Av‡jvi Zi½ Z‡Ë¡i D™¢veK|
17.
ievU© ûK
(1635-1703)
Bsj¨vÛ
o   c`v‡_©i w¯’wZ¯’vcK a‡g©i AbymÜvb K‡ib|
18.
ievU© i‡qj
(1627-1691)
Avqvij¨vÛ
o   wewfbœ Pv‡c M¨v‡mi ag© †ei Kivi Rb¨ cix¶v-wbix¶v Pvjvb|
19.
fb ¸‡qwiK
(1602-1686) Rvg©vwb
o   evqy cv¤ú Avwe®‹vi K‡ib|
20.
‡ivgvi
(1644-1710)
†WbgvK©
o   e„n¯úwZi GKwU DcMÖ‡ni MªnY ch©‡e¶Y  K‡i Av‡jvi †eM cwigvc K‡ib|
21.
‡Kvcvwb©Kvm
(1473-1543)
†cvj¨vÛ
o   ‡mŠi‡Kw›`ªK Z‡Ë¡i avibv Dcw¯’Z K‡ib|
22.
‡Kcjvi
(1571-1630) Rvg©vwb
o   wZbwU m~‡Îi mvnv‡h¨ ‡Kvcvwb©Kv‡mi Ô‡mŠi‡Kw›`ªK Z‡Ë¡i' MvwYwZK eY©bv †`b|
o   cÖPwjZ e„ËvKvi K¶c‡_i cwie‡Z© Dce„ËvKvi K¶c_ Kíbv K‡ib|
23.
UvB‡Kveªv‡n
(1546-1601)
myB‡Wb
o   MÖn‡`i MwZc_ m¤ú‡K© MvwYwZK m~‡Îi D™¢veK|
24.
wbDUb
(1642-1727)
Bsj¨vÛ
o   ejwe`¨v I ejwe`¨vi wZbwU weL¨vZ m~Î Avwe®‹vi K‡ib|
o   wek¦Rbxb gnvKl© m~Î Avwe®‹vi K‡ib|
o   MvwY‡Zi K¨vjKzjvm Avwe®‹vi K‡ib|
o   M¨vwjwjI Gi ˆeÁvwbK m~‡Îi c~Y©Zv `vb K‡ib|
o   k‡ãi ‡eM wbY©‡qi GKwU m~Î Avwe®‹vi K‡ib|
o   kã I Av‡jvK weÁv‡b Zvi Ae`vb Av‡Q|
25.
‡Rgm& IqvU
(1736-1813)
¯‹Uj¨vÛ
o   ev®úxq BwÄb Avwe®‹vi K‡ib|
26.
n¨vÝ wµwðqvb I‡qi‡÷W
(1777-1851)
†WbgvK©
o   Zwor cÖev‡ni †PŠ¤^K wµqv Avwe®‹vi K‡ib|
27.
gvB‡Kj d¨viv‡W
(1791-1867)
Bsj¨vÛ
o   Ò‡PŠ¤^K wµqv Zwor cÖevn Drcv`b K‡iÓ GwU Avwe®‹vi K‡ib|
28.
†nbix
(1797-1879)
hy³ivóª
o   Ò‡PŠ¤^K wµqv Zwor cÖevn Drcv`b K‡iÓ GwU Avwe®‹vi K‡ib|
29.
‡jÄ
(1804-1865)
ivwkqv
o   Ò‡PŠ¤^K wµqv Zwor cÖevn Drcv`b K‡iÓ GwU Avwe®‹vi K‡ib|
30.
‡Rgm& K¬vK© g¨v·I‡qj
(1831-1879)
¯‹Uj¨vÛ
o   Av‡jv GK cÖKvi Zwor †PŠ¤^K Zi½|
o   Zwor †¶Î I †PŠ¤^K †¶‡Î GKxf~Z K‡i Zwor †PŠ¤^K Z‡Ë¡i weKvk NUvb|
31.
‡nbwiL nvR©
(1857-1894)
Rvg©vwb
o   Zvwor †PŠ¤^K wewKiY Drcv`b I D`NvUb K‡ib|
32.
gvK©bx
(1874-1937)
BZvwj
o   Zvwor †PŠ¤^K Zi‡½i e¨envi K‡i AwaK `~i‡Z¡ †gvm©‡Kv‡W ms‡KZ cvVv‡bvi e¨e¯’v K‡ib| Gfv‡e †eZvi Rb¥ jvf K‡i|
33.
RM`xk P›`ª emy
(1858-1937)
evsjv‡`k
o   Zvwor †PŠ¤^K Zi½ e¨envi K‡i GK ¯’vb †_‡K Ab¨ ¯’v‡b kw³ †cÖiY K‡ib| Gfv‡e †eZvi Rb¥ jvf K‡i|
34.
ib‡Rb
(1845-1923)
Rvg©vwb
o   G·-†i Avwe®‹vi K‡ib|
35.
‡e‡K‡ij
(1852-1908)
d«vÝ
o   BD‡iwbqvg ‡ZRw¯ŒqZv Avwe®‹vi K‡ib|
36.
g¨v·c­¨v¼
(1858-1947)
Rvg©vwb
o   wewKiY msµvšÍ †Kvqv›Uvg ZË¡ Avwe®‹vi K‡ib|
37.
AvjevU© AvBb÷vBb
(1879-1955)
Rvg©vwb
o   Av‡cw¶K ZË¡ Avwe®‹vi K‡ib|
38.
iv`vi‡dvU©
(1871-1937)
wbDwRj¨vÛ
o   cigvby welqK wbDwK¬q ZË¡ ‡`b|
39.
bxjm& †evi
(1885-1962)
†WbgvK©
o   nvB‡Wªv‡R‡bi cigvYyi B‡jKUªb ¯Í‡ii aviYv †`b|
40.
I‡Uvnvb
Rvg©vwb
o   ÒwbDwK¬qvm wdkb †hvM¨Ó|
41.
‡÷ªm&g¨vb
Rvg©vwb
o   ÒwbDwK¬qvm wdkb †hvM¨Ó|
42.
m‡Z›`ªbv_ emy
(1894-1974)
evsjv‡`k
o   ZvwË¡K c`v_© weÁv‡b ¸i“Z¡c~Y© Ae`vb iv‡Lb|
o   c­v‡¼b †Kvqv›Uvg Z‡Ë¡i GKwU ï×Zvi cÖgvY Dc¯’vcb K‡ib|
ÔwKQy †gŠwjK ivwkÕ I Ô†fŠZ ivwki bvg,
ms‡KZ, GKK I gvÎv:
µwgK
bs:
ivwk:
(evsjv bvg)
ivwk:
(In English)
ivwki
ms‡KZ:
Gm. AvB. (SI) GKK:
gvÎv:
GK‡Ki bvg:
ms‡KZ:
01.
‰`N©¨
Length
l
wgUvi
m
L
02.
fi
Mass
m
wK‡jvMÖvg
kg
M
03.
mgq
Time
t
‡m‡KÛ
s
T
04.
miY
Displacement
S
wgUvi
m
L
05.
‡¶Îdj
Area
A
(wgUvi)2
m2
L2
06.
AvqZb
Volume
V
(wgUvi)3
m3
L3
07.
‡eM
Velocity
u or v
wgUvi/‡m‡KÛ
ms-1
LT-1
08.
`ªywZ
Speed
u or v
wgUvi/‡m‡KÛ
ms-1
LT-1
09.
Z¡iY
Acceleration
a
wgUvi/‡m‡KÛ2
ms-2
LT-2
10.
fi‡eM
Momentum
p
wK‡jvMÖvg-wgUvi/‡m‡KÛ
Kgms-1
MLT-1
11.
ej
Force
F
wbDUb
N or Kgms-2
MLT-2
12.
KvR
Work
W
Ryj
J or N.m
ML2T-2
13.
¶gZv
Power
P
IqvU
W or J.S-1
ML2T-3
14.
kw³
Energy
E
Ryj
J or N.m
ML2T-2
15.
NbZ¡
Density
ρ
wK‡jvMÖvg/wgUvi3
Kgm-3
ML-3
16.
Pvc
Pressure
P
c¨vm‡Kj
Pa orNm-2
ML-1 T-2
17.
Zvc
Quantity of heat
Q
Ryj
J or N.m
ML2T-2
18.
‡`vjb Kvj
Time Period
T
‡m‡KÛ
s
T
19.
Zi½ ‰`N©¨
Wave Length
λ
wgUvi
m
L
20.
K¤úv¼
Frequency
f
nvR©
Hz or S-1
T-1
21.
ZvcgvÎv
Temperature
θ
‡Kjwfb
K
θ
22.
Zvc aviY ¶gZv
Heat Capacity
C
Ryj/‡Kjwfb
J .kg-2
ML2T-2 θ-1
23.
Av‡cw¶K myß Zvc
Specific latent heat
l
Ryj/wK‡jvMÖvg
J .kg-1
L2T-2
24.
Zwor cÖevn
Electric Current
I
A¨vw¤úqvi
A
I
25.
Avavb
Charge
Q or q
Kzj¤^
C or As
IT
26.
Zwor ZxeªZv
Electric Intensity
E
wbDUb/ Kzj¤^
NC-1 or Vm-1
ML-3I-1
27.
Zwor wefe
Electric Potential
V
‡fvë
V or J.C-1
ML2T-3 I-1
28.
‡iva
Resistance
R
Ing
Ω
ML2T-3 I-2


1| wgbv GKwU Zv‡ii e¨vm wbY©q Ki‡Z PvBj | cix¶vMv‡i wk¶K Zv‡K Kx fv‡e wbY©q Ki‡Z nq Zv †`wL‡q w`‡jb,hvi ‰iwLK †¯‹j cvV   3mm, e„ËvKvi †¯‹‡ji fvM msL¨v  30 Ges hš¿wUi jwNô MYY wQj 0.1mm |
    
K) ¯ŒzM‡Ri abvZœK ΓwU Kv‡K e‡j?
          L) GK‡Ki AvšÍR©wZK c×wZ †Kb myweavRbK?
          M) wgbvi e¨en„Z Zv‡ii cÖ¯’‡”Q‡`i †¶Îdj wbY©q Ki|
          N) ¯­vBW K¨vwjcvm© I  ¯ŒzM‡Ri g‡a¨ cv_©K¨ Av‡jvPbv Ki|

1 bs cÖkœ DËi t  (K)
¯ŒzM‡Ri aYvZœK ΓwUt e„ËvKvi ‡¯‹‡ji k~b¨ `vM hw` ˆiwLK †¯‹‡ji k~b¨`v‡Mi wb‡P _v‡K, Zvn‡j G ΓwU‡K ¯ŒzM‡Ri abvZœK ΓwU e‡j|
1 bs cÖkœ DËi t  (L)
GK‡Ki AvšÍRv©wZK c×wZ myweavRbK| KviY †gŠwjK ivwki GKKmg~n †h‡nZz Ab¨ GKK¸‡jvi Ici wbf©i K‡i bv, ZvB †gŠwjK GKK B‡”QgZ wbe©vPb Kiv hvq | wKš‘ †mB wbe©vPb hw`  AvšÍR©vwZK c×wZ†Z bv nq Zvn‡j GwU cwiewZ©Z n‡Zv A_©vr GwU ¯’vb, Kvj, cv‡Îi Ici wbf©i KiZ| Gi d‡j wewfbœ †`‡k GKwU ivwki GKK  wfbœ wfbœ  nZ | G‡Z AvšÍR©vwZKfv‡e wKQz cwigvc Ki‡Z n‡j wewfbœ iK‡gi mgm¨v m„wó nZ| wfbœ& wfbœ gZvgZ m„wó n‡Zv | Aci w`‡K AvšÍR©vwZKfv‡e GKwU ivwki GKK wbw`©ó nIqvi Rb¨ GLb Avi †Kvb mgm¨v m„wó nq bv | ZvB GK‡Ki AvšÍRv©wZK c×wZ  myweavRbK|

1 bs cÖkœ DËi t  (M)
 ‡`Iqv Av‡Q ,
‰iwLK †¯‹j cvV,  L = 3mm
e„ËvKvi †¯‹‡ji fvM msL¨v,  C = 30
hš¿wUi jwNô MYY wQj, LC = 0.1mm

Avgiv Rvwb , Zv‡ii e¨vm, d = ‰iwLK †¯‹j cvV + e„ËvKvi †¯‹‡ji fvM msL¨v × jwNô MYY
=L + C × LC
= ( 3 + 30 × 0.1 ) mm
d
2
= 6 mm
6
2
Avevi Zv‡ii cÖ¯’‡”Q‡`i †¶Îdj, A = π ×(                )2
= 3.1416 ×(     )2 mm2
= 28.27 mm2

myZivs Zv‡ii cÖ¯’‡”Q‡`i †¶Îdj: 28.27 mm2 (Ans.)
1 bs cÖkœ DËi t  (N)
¯øvvBW K¨vwjcvm© I  ¯Œz-M‡Ri g‡a¨ cv_©K¨ wb‡gœ Av‡jvPbv Kiv n‡jv t
¯øvvBW K¨vwjcvm©
¯Œz-MR
1| ¯øvvBW K¨vwjcv‡m©i Aci bvg fvwbqvi K¨vwjcvm© |
1| ¯ŒzM‡Ri Aci bvg gvB‡µvwgUvi |
2| ¯øvvBW K¨vwjcv‡m©i mvnv‡h¨ e¯‘i ˆ`N¨©, †PvO ev     †ejy‡bi D”PZv, dvucv b‡ji AšÍte¨vm I ewnte¨vm wbY©q Kiv nq|
2| ¯ŒzM‡Ri mvnv‡h¨ Zv‡ii e¨vmva© , mi“ †Pv‡Oi e¨vmva© I †QvU ˆ`N¨© wbY©q Kiv nq|
3| G h‡š¿ `yB ai‡bi ÎywU †`Lv hvq| h_v: abvZ¥K ÎywU I FYvZ¥K ÎywU |
3| G h‡šÎ `yB ai‡bi ÎæwU †`Lv hvq h_v - k~Y¨ ÎæwU I wcQb ÎæwU |
4| G h‡š¿ fvwb©qvi aªyeK wbY©q Kiv nq |
4| G h‡š¿ jwNô MYb wbY©q Kiv nq |
5| `‡Ûi ˆ`N¨© wbY©‡qi m~Ît L = M + V × VC
5| Zv‡ii e¨vm wbY©‡qi m~Ît d = L + C × LC

2|  ivwk `yB cÖKvi - ‡gŠwjK ivwk I jwä ivwk| Giƒc K‡qKwU ivwk nj-
(i)  ‡eM (ii)  Z¡iY            (iii) mgq I        (iv) Z¡iY| G‡`i g‡a¨ wewfbœ m¤úK© we`¨gvb hv gvÎvi mvnv‡h¨ cÖKvk Kiv hvq |
K)  GK wgUvi Kv‡K e‡j?
L)  (i)(iii) bs ivwki g‡a¨ cv_©K¨ wjL |
M)  (i) , (ii) I  (iv) bs ivwki g‡a¨ m¤úK©wU wj‡L gvÎvi mvnv‡h¨ mZ¨Zv hvPvB Ki |
N)  (i) , (ii) I  (iv) bs ivwki g‡a¨ m¤úK©wU cÖwZcv`b Ki|

1
299792458
2 bs cÖkœ DËi t  (K)
GK wgUvi: k~b¨ ¯’v‡b Av‡jv                   †m‡K‡Û †h `~iZ¡ AwZµg K‡i Zv‡K GK wgUvi e‡j|

2 bs cÖkœ Dëi t  (L)
‡eM I mg‡qi g‡a¨ cv_©K¨ wb‡P †`Iqv njt
‡eM
mgq
1| ‡eM GKwU jä ivwk|
1| mgq GKwU †gŠwjK ivwk |
2| †e‡Mi GKK wgUvi/‡m‡KÛ
2| mg‡qi GKK †m‡KÛ|
3| †eM‡K v Øviv cÖKvk Kiv nq| 
3| mgq †K t Øviv cÖKvk Kiv nq| 
4| †eM = miY/mgq
4| mg‡qi Giƒc mgxKiY †bB|

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