The position of the image obtained by convex lens when object is kept beyond 2F1(F: principal focus of the convex lens) A. between F2 and 2F2
B. at 2F2
C. beyond 2F2
D. at infinity
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If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.

The uniform slender bar rests on a smooth horizon- tal surface when a force f is applied normal to the bar at point a. point a is observed to have an initial acceleration aa of 20 m/s2, and the bar has a corre- sponding angular acceleration of 18 rad /s2. deter- mine the distance b.

Me with this and you will be marked brainliest