Physics 1st Paper MCQ-Dhaka Board-2021

1

$\hat{\mathbf{i}}$

$\hat{\mathbf{j}}$

$\hat{\mathbf{k}}$

zero

$\frac{1}{\sqrt{2}}$ times

unchanged

infinity

$-28 \mathrm{~ms}^{-1}$

$28 \mathrm{~ms}^{-1}$

$392 \mathrm{~ms}^{-1}$

$784 \mathrm{~ms}^{-1}$

$\mathrm{ML}^{-1} \mathrm{dx}$

$\mathbf{M}^{-1} \mathrm{dx}$

$\mathbf{M L x}$

$\mathrm{Mx}^{-1} d \mathrm{x}$

$\mathrm{kgm}$

$\mathrm{kgm}^{-1}$

$\mathrm{kgm}^{2}$

$\mathrm{kgm}^{-2}$