What Should Rohan Choose ? #shorts | Paheliyan | Paheli | Riddles | Zestful Paheli |

Smita wanted to sensitize her learners about gender disparity and stereotypes related to work. What should Smita choose to do in her class from the following suggestions?

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly?

A short-sighted person cannot see objects situated beyond 2m from him distinctly. What should be the power of the lens which he should use for seeing distant objects clearly ?

The childern are trying to shoot a marble into a marble into a small box using a spring loaded gun that fixed on a table and shoots horizontally from the edge of the table. The centre of the box is a horizontal distance 5m from the edge of the table. The first child compresses the spring a distance 2cm and finds that the marble falls short of its target by a horizontal distance 3m . By what distance x should the second child compress the spring to score a direct hit on the box?

A standard HCl solution is titration to a pink phenolphtalein endpoint by adding NaOH solution while stirring. If a solution becomes pink throughout but loses its colour upon standing for a short time, what should be done to restore the coloure ?