Page 16 - Bangladesh_classwiz_BOOK2018_rev_Neat

GKBfv‡e, Av‡jvi MwZ †m‡K‡Û 299792458 wgUvi| GB MwZ‡Z GKwU 210 wgwjwgUvi cÖ¯’wewkó 4 AvK…wZi
KvMR AwZµg Ki‡Z ‡h mgq jvM‡e Zv AZ¨šÍ †QvU| GB `yBwU msL¨vB K¨vjKz‡jUi ¯^qswµqfv‡e ˆeÁvwbK iƒ‡c
cÖKvk Ki‡e hv Dc‡ii w¯Œ‡b †`Lv hv‡”Q| †h‡nZz K¨vjKz‡jUi wbw`©ó msL¨K A¼ cÖ`k©b Ki‡Z cv‡i ZvB Dc‡ii
`yBwU djvd‡ji Avmbœ gvb cvIqv ‡M‡Q| `vevi Q‡Ki †ÿ‡Î cÖK…Z djvdj n‡jv 9.223372037 ×

1000 000 000 000 000 000 A_©vr 9.223372037 × 10 18 ≈ 9.223372 037 000 000 000
cÖK…Zc‡ÿ, mwVK djvdj (hv K¨vjKz‡jU‡ii wWm‡cøi Zzjbvq eo) n‡jv 9223 372 036 854 775808 hv‡K
K¨vjKz‡jUi Avmbœ gvb wn‡m‡e cÖ`k©b K‡i|

O Kx Ges ^ Kx A_ev 10 (qi) Kx e¨envi K‡i mivmwi msL¨v‡K ‰eÁvwbKiƒ‡c K¨vjKz‡jU‡i cÖ‡ek
Kiv‡bv hvq| Z‡e me‡P‡q myweavRbK n‡”Q K Kx e¨envi Kiv|

25
Dc‡ii wZbwU w¯Œ‡b 5.68 × 10 msL¨vwU cÖ‡ek Kiv‡bvi Rb¨ Key log wb‡P †`Iqv n‡jv-
5.68O10^25=
5.68Oqi25=
5.68OK25=

K Gi †ÿ‡Î ¸Y wPý Ges Nv‡Zi Rb¨ Avjv`v ‡Kv‡bv Kx Pvc‡Z nq bv e‡j GB c×wZwU AwaK myweavRbK|
jÿYxq †h, G‡ÿ‡Î K¨vjKz‡jU‡ii wWm‡cø‡Z 10 Gi NvZ‡K NvZ AvKv‡i bv †`Lv‡jI K¨vjKz‡jUi GwU‡K NvZ
wn‡m‡e we‡ePbv K‡i djvdj cÖ`k©b K‡i‡Q|

Avevi qw e¨envi K‡i Number Format G wM‡q Scientific mode wbe©vPb Kiv hvq|

1.8 msL¨vi g~j

K¨vjKz‡jU‡i s e¨envi K‡i msL¨vi eM©g~j cvIqv hvq| wb‡Pi cÖ_g w¯Œ‡b 3 Gi eM©g~j Av`k©iƒ‡c cÖ`wk©Z

n‡q‡Q| n Kx Pvc‡j `kwgK msL¨vq Avmbœ gvb cvIqv hv‡e| (weKífv‡e, q= e¨envi Ki‡j mivmwi
`kwg‡K gvb cvIqv hv‡e|)

Dfq‡ÿ‡Î djvdj cvIqvi ciciB d Kx Pvc‡j cÖvß djvd‡ji mZ¨Zv †evSv hvq cieZ©x w¯Œ‡b †`Lv‡bv n‡jv-

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