$1.14\times {10}^{-4}m/s$

$0.91m{s}^{-1}$

9.4 m/s

94 m/s

800 m/s

433 s সময় বৃদ্ধি পাবে

433 s সময় হারাবে

216 s সময় বৃদ্ধি পাবে

216 s সময় হারাবে

সময় অপরিবর্তিত থাকবে

498 Hz

628 Hz

448 Hz

425 Hz

480 Hz

$-215°C$

$-137°C$

$-58°C$

$58°C$

$137°C$

1687 J

25.79KJ

29.05KJ

$2.9 \times {10}^{6}J$

$2.55 \times {10}^{5}J$

4.37 cm

0.21 m

0.068 m

5.17 cm

7.2 cm

$5.31\times {10}^{14} Hz$

$4.59\times {10}^{14} Hz$

$2.46\times {10}^{15} Hz$

$6.54\times {10}^{14} Hz$

$14.48\times {10}^{18} Hz$

$4.28 \times {10}^{-4}y$

8.99y

23.7 y

246.21 y

4120y

22 kg

27.2 kg

26.8 kg

27 kg

$28.4\times {10}^3 gm$

$-186.2m{s}^{-2}$

$-9.8m{s}^{-2}$

$0.081m{s}^{-2}$

$8.05m{s}^{-2}$

$9.8m{s}^{-2}$

$4.6\times {10}^{18}kg.m^{-3}$

$4.66\times {10}^{18}kg/m^3$

$5.1\times {10}^{18}g.c{m}^{-3}$

$3.38\times {10}^{18}kg.m^{-3}$

$4.2\times {10}^{21}g/c{m}^3$

19

18

16

13

15

$5.92m^2$

$2.76m^2$

$10.39m^2$

$2.96m^2$

$2.56m^2$

3.43 m/s

2.82 m

6.39 m /s

4 cm /s

6.07 m/s

3.35 hp

3.07 hp

3.65 hp

4.38 hp

6.25 hp

${10}^{-3} J$

$6.84\times {10}^{-3}$

$68.39\times {10}^{-3}J$

0.684 J

6.84 J

72.4 m

289.6 m

580 m

651.4 m

950 m

1.28 mm

0.52 mm

0.06cm

0.84 cm

0.72 mm

50%

40%

30%

20%

10%

2700 N-m

1800 N -m

900 N-m

450N -m

400 N -m

6000 VA

5.5 kVA

6.05KVA

10 kVA

12.5VA

1.5

1.53

1.48

1.62

1.52

15.83 cm

9.73 cm

9.73 cm

0.15 cm

0.12 m

$0.17°$

${11}^{/}{16}^{//}$

$0.15°$

${13}^{/}{20}^{//}$

$9^{/}{17}^{//}$

$1.395\times {10}^{15}$

$1.395\times {10}^{16}$

$1.395\times {10}^{17}$

$1.395\times {10}^{18}$

$1.395\times {10}^{19}$

0.0325 , 0.9675

0.9675,0.0325

0.0476,0.9524

0.9534,0.0476

0.0556, 09444

$2C{O}_2+O_2+4e\to 2CO\frac{2^{-}}{3}$

$O_2+4H^{+}+4e\to 2H_{2}O$

$2H_2\to 4H^{+}+2e$

$\frac{1}{2}{O}_2+H_{2}O+2e\to 2O{H}^{-}$

${}^{H_2+2O{H}^{-}\to 2H_{2}O +2e }$

i, ii

i, iii

i, iv

ii, iv

i, ii, iv

$E_1>E_2>E_3$

$E_3>E_2>E_1$

$E_2>E_3>E_1$

$E_3>E_1>E_2$

$E_2>E_1>E_3$

কার্বোক্যাটায়ন

কার্বাঅ্যানায়ন

ফ্রি-র‌্যাডিক্যাল

ইলেক্ট্রােফাইল

লুইস-এসিড

$C{H}_{3}CHO$

$C{H}_{3}C{H}_{2}C{H}_{2}OH$

$C{H}_{3}COOH$

$C{H}_{3}C{H}_{2}C{H}_{2}OH$

$C{H}_{3}C{H}_{2}COOH$

45.0 g

31.5g

63.0g

126.5g

15.8 g

$2.2\times {10}^{-3}$

$1.0\times {10}^{-3}$

$1.1\times {10}^{-3}$

$2.4\times {10}^{-4}$

$4.4\times {10}^{-3}$

$K^{+}|K<M{g}^{2+}|Mg<C{r}^{3+}|Cr<H{g}^{2+}|Hg<A{g}^{+}|Ag$

$A{g}^{+}|Ag<H{g}^{2+}|Hg<C{r}^{3+}|Cr<K^{+}|K<M{g}^{2+}|Mg$

$Ag<Hg<Cr<Hg<Ag$

$K<Mg<Cr<Hg<Ag$

${K}^{+}|K<A{g}^{+}|Ag<M{g}^{2+}|Mg<H{g}^{2+}|Hg<C{r}^{3+}|Cr$

IV>V>III>I>II

IV>III>V>I>II

II>I>III>V>IV

II>I>V>III>IV

IV>I>II>V>III

2

3

4

5

6

$(C{H}_3{)}_{2}C{O}_3$

$N{a}_{2}C{O}_3$

$SrC{O}_3$

$MgC{O}_3$

$CaC{O}_3$

বীকার

কনিক্যাল ফ্লাঙ্ক

চ্যাপ্টতলী ফ্লাঙ্ক

গোলতলী ফ্লাঙ্ক

পোরসেলিন ক্রুসিবল

i, ii

i,iii,iv

ii,iii

i,ii,iii

i,ii,iv

12

10

8

6

4

15.6 ppm

17.6 ppm

19.6ppm

21.6ppm

23.6ppm

$C_2{H}_4$

$C_2{H}_6$

$C_6{H}_6$

$C_3{H}_8$

$C_2{H}_2$

$\frac{M}{10} MgS{O}_4$ দ্রবণ

$\frac{{\displaystyle M}}{{\displaystyle 10}} NaCl$ দ্রবণ

$\frac{{\displaystyle M}}{{\displaystyle 10}} FeC{l}_3$ দ্রবণ

$\frac{{\displaystyle M}}{{\displaystyle 10}} N{a}_{2}C{O}_3$ দ্রবণে

$\frac{{\displaystyle M}}{{\displaystyle 10}} N{H}_{4}Cl$ দ্রবণে

25 g

16 g

12 g

30 g

20 g

IV>V>III>I>II

IV>III>V>I>II

II>I>III>V>IV

II>I>V>III>IV

IV>I>II>V>III

2

3

4

5

6

$6\sigma +13\pi$

$6\sigma +6\pi$

$6\sigma +3\pi$

$12\sigma +3\pi$

$12\sigma +6\pi$

0.03125

0.25

$3.9\times {10}^{-3}$

0.375

4

$1:1.0\times {10}^3$

2: 1

$1.0\times {10}^3: 1$

$1:1.0\times {10}^2$

$1.0\times {10}^2:1$

4

5

6

10

0

If I had the wings of a bird .

I wish to have the wings of a birs

I pray, I had the wings of a bird.

I had the wings of a bird

I wish , I had sthe wings of a bird

A red rose was seen by Jesmin going into the garden .

Jesmin saw a red rose going into the garden

Jesmin went to the garden to see a read rose.

Going to the garden Jesmin saw a red rose .

While Jesmine went to the garden saw a red rose.

Have heard

was hearing

hear

have been heard

heard

Lyric

Ode

Ballad

Ballade

Hymn

otherwise

or

lest

unless

avoiding

Providing enough energy

Risk of energy Sources

Environment pollution

Scare of natural gas

Cost of energy

Nuclear and coal

Solar and oceanic

Wind and coal

Gas and oil

Coal and solar

Avi asked Supti how she was .

Avi asked Supti if she was well.

Avi asked and greeted Supti how she was.

Avi greeted Supti to ask her how she was.

Ari greeted Supti and asked her how she was.

handled

would have handle

would handle

shall handle

should handle

Doesn't he

does he

did he

didn't he

isn't he

Criteria

Issucs

Physics

Media

Pains

Anik is taller than all other boys in the class s

Anik is taller than other boys in the class.

Anik is taller than most other boys in the class .

No other boy in the class is as tall as Anik .

Anik is more tall than all other boys in the class.

Simple

Complex

Compound

Multiple

Double

Noun phrase

Adverb phrase

Adjective phrase

Preposition phrase

Conjunction phrase

invention

education

prestige

contribution

fame

on

in

for

at

by

Reflexive

Emphatic

Distributive

Relative

Personal

Dog

Bitch

Cow

Pig

Cat

Where he lives in known to all.

He lives where is known to nobody

Where he lives is known to none.

Where he lives is known to nobody

He lives where is known to everybody .

Liberal

Sportive

Gay

Jovial

Tauut

Which color you prefer, the red or the blue?

Which colour you prefer , the red or blue

Which colour you prefer more, the red or the blue?

Which colour you prefer more, the red or the blue.

Which color you prefer more, the red or the blue.

I saw him waling in the field

I am absolutely happy.

He always speaks the truth .

He runs very fast.

He behaves well.

I desire I could go to Canada.

If I had gone to Chanada!

Would that I could go to Canada!

I wish I have gone to Canada.

If I would go to Canada.

${\cos }^{-1}\left(\frac{8\sqrt{23}}{63}\right)$

${\cos }^{-1}\left(\frac{8\sqrt{21}}{63}\right)$

${\cos }^{-1}\left(\frac{5\sqrt{23}}{63}\right)$

${\sin }^{-1}\left(\frac{8\sqrt{23}}{63}\right)$

${\cos }^{-1}\left(\frac{2\sqrt{21}}{63}\right)$

$y=\frac{z}{3}x,y=\frac{1}{8} x$

$y=\frac{1}{3}x,y=\frac{2}{5} x$

$y=\frac{3}{2}x,y=\frac{7}{4} x$

$y=\frac{7}{4}x,y=\frac{1}{8} x$

$y=\frac{1}{3}x,y=\frac{3}{3} x$

x+y =6

2x + y =12

x +2y = 5

2x - 3y =13

3x + 4y =7

-1

2

-3

4

3

$\frac{x^2}{16}+\frac{y^2}{32}=1$

$\frac{x^2}{36}+\frac{y^2}{16}=1$

$\frac{x^2}{4}+\frac{y^2}{16}=1$

$\frac{x^2}{32}+\frac{y^2}{64}=1$

$\frac{x^2}{64}+\frac{y^2}{32}=1$

cos X - cosy

sin x - sin y

tanx - tany

$\frac{\sin x -\sin y }{\cos x +\cos y }$

$\frac{sec x . sec y}{ \tan x-\tan y }$

$e^5$

$e^7$

$e^{10}$

$e^3$

$e^3$

5 N

15 N

10 N

20 N

25 N

$\frac{5}{3} m /se{c}^2, \frac{250}{3 } m$

$\frac{3}{5} m /se{c}^2, \frac{250}{7 } m$

$\frac{5}{3} m /se{c}^2, \frac{150}{7} m$

$\frac{5}{7} m /se{c}^2, \frac{225}{7} m$

$\frac{7}{3} m /se{c}^2, \frac{100}{3 } m$

$\frac{2\ln x+3}{x^3}$

$\frac{2\ln x-3}{x^3}$

$\frac{2\ln x+5}{x^3}$

$\frac{2\ln x+3}{x^2}$

$\frac{2\ln x+3}{x^2}$

32.5 m

65 m

6.63 m

637 m

98 m

$\frac{7}{15}$

$\frac{6}{21}$

$\frac{11}{21}$

$\frac{5}{21}$

$\frac{13}{21}$

46.66

45.45

44.67

48.67

47.67

TK. 10

Tk. 12

TK. 15

TK. 13

TK. 20

6

7

8

9

10

11

9

8

10

0

2,-1

3,-1

4,-1

1,4

1,3

33000

34000

35000

32000

36000

20 kg -wt and 45 kg -wt

30 kg -wt and 35 kg -wt

25 wt and 40 kg -wt

15 kg -wt and 50 kg -wt

5 kg -wt and 60 kg -wt .

$\frac{1}{\sqrt{5}}$

$\frac{\sqrt{3}}{5}$

$\frac{\sqrt{3}}{3}$

$\frac{\sqrt{2}}{2}$

$\frac{\sqrt{2}}{4}$

$\frac{2}{x(1-4x)}$

$\frac{2}{x(1+4\sqrt{x})}$

$\frac{{\displaystyle 2}}{{\displaystyle \sqrt{x}(1+4x)}}$

$\frac{{\displaystyle 4}}{{\displaystyle \sqrt{x}(1+4x)}}$

$\frac{{\displaystyle 3}}{{\displaystyle \sqrt{x}(1+4x)}}$

10

15

8

12

20

$\frac{1}{\sqrt{2}}{\sin }^{-1} \left\{\sqrt{\frac{2}{3}(x-1)}\right\}$

$\frac{1}{5}{\sin }^{-1}x$

$\frac{1}{\sqrt{3}}{\sin }^{-1} (x+1)$

$\frac{1}{6}{\cos }^{-1}(x+1$

$\frac{1}{\sqrt{2}} {\cos }^{-1}(x-1)$

ln ( 1 +2)

$\frac{1}{2} \ln \frac{1+2e}{1+2e^{-1}}$

$\frac{{\displaystyle 1}}{{\displaystyle 3}} \ln (1+2e)$

$\frac{{\displaystyle 1}}{{\displaystyle 4}} \ln (1-2e)$

$\frac{{\displaystyle 1}}{{\displaystyle 3}} \ln (1+3e)$

$\frac{3}{13}$

$\frac{13}{15}$

$\frac{13}{17}$

$\frac{17}{18}$

$\frac{3}{16}$

Joyful

Sportive

Gay

Jovial

Taunt

Stupidity

Idiot

Stupidness

Stupendous

Stupefy