RATIO of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is: 1) 7/29
2) 9/31
3) 5/27
4) 5/23​

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =