Correct answer
D. a−b
Explanation
a−b is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Two sources of light are coherent if they emit rays of_______________?
The graphical representation of Ohms law is___________________?
Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?
A cup of milk is placed in a microwave oven. Tell which statements is false. (1) Milk will be heated up only. (2) Cup will remain cool. (3) Both cup and mild will get hot ?
When a body moves in a straight line then its displacement coincides with__________________?
A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?