• A. ৩৩
• B. 44
• C. 12
• D. 22

Answer: Option B

Explanation:

• A. v = u + at
• B. $v=u+a{t}^3$
• C. $v=4+\frac{a{t}^3}{2}$
• D. $v=4+\frac{a{t}^4}{2}$

Answer: Option B

Explanation:

• A. $40kgm{s}^{-1}$
• B. $100kgm{s}^{-1}$
• C. $4kgm{s}^{-1}$
• D. $400kgm{s}^{-1}$

Answer: Option D

Explanation:

• A. $C{H}_4$
• B. $C{H}_{3}Cl$
• C. NaCl
• D. $PC{l}_3$

Answer: Option C

Explanation:

• A. $\overrightarrow{a}>\overrightarrow{b}$
• B. $\overrightarrow{a}=\overrightarrow{b}$
• C. $\overrightarrow{a}\perp \overrightarrow{b}$
• D. $\overrightarrow{a}\parallel \overrightarrow{b}$

Answer: Option C

Explanation:

• A. আইনস্টাইন
• B. নিউটন
• C. মাদামকুরি
• D. রাদারফোর্ড

Answer: Option A

Explanation: