Physics 1st Paper MCQ-Mymensingh Board-2022

1. How much time a day will a second pendulum lose if its length is incresed by $1 \%$ ?

2. Which force is responsible for the atomic structure and chemical reaction of matter?

3. The equation for a particle with simple harmonic motion $x=A$ sinct. The velocity-time graph is -

4. Answer to the questions no. 16 and 17 according to the stimuli :

$\hat{\mathbf{i}}, \hat{\mathbf{j}}, \hat{\mathrm{k}}$ direct three unit vectors.

$\hat{i} \cdot(\hat{k} \times \hat{j})=$ how much?

5. Read the stem and answer the question no. 18 and 19 :

IN force is activated for iS on a metal of $0.1 \mathrm{~kg}$ mass.

What is the acceleration of the object?