Physics 1st Paper MCQ-Chittagong Board-2017

$\vec{\nabla} \cdot \vec{V}=0$

$\vec{\nabla} \times \vec{v}=\overrightarrow{0}$

$\vec{\nabla} \vec{v}=0$

$\vec{\nabla} \cdot \vec{V} \neq 0$

$\mathrm{ML}^{-2} \mathrm{~T}^{-1}$

$\mathrm{ML}^{-2} \mathrm{~T}^{-2}$

$\mathrm{ML}^{-1} \mathrm{~T}^{-2}$

$\mathrm{ML}^{-1} \mathrm{~T}^{-1}$

35 cm

40 cm

60 cm

70 cm

15.81 N

14 N

13.23 N

11.23 N

$f=\frac{1}{2 \pi} \sqrt{\frac{k_{1}-k_{2}}{m}}$

$f=\frac{1}{2 \pi} \sqrt{\frac{m}{k_{1}+k_{2}}}$

$f=\frac{1}{2 \pi} \sqrt{\frac{k_{1}+k_{2}}{m}}$

$f=\frac{1}{2 \pi} \sqrt{\frac{\mathrm{m}}{\mathrm{k}_{1}-\mathrm{k}_{2}}}$