Correct answer
A. 1.4
Explanation
1.4 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
A diffraction grating has 500 lines per mm. Its slit spacing or grating element will be equal to ____________________?
Joule Thomson effect is based upon __________ ?
When fluid is incompressible then________________?
Unit of power of a lens is________________?
When arrow is released form its bow, its energy is transformed from _____________________?
Why should a resistance be introduced in a circuit in series deliberately ?