Correct option is D
In interferometry, which phenomenon is primarily used to measure very small linear displacements with high precision?
What type of joint is depicted in the image given above?

Fill in the blank with the correct option.
Copper is ____ most useful Metal.
A metal rod is stretched, causing its length to increase from the original length L by ΔL. How is longitudinal strain determined when it is positive, indicating an increase in length?
The base of a parallelogram is 10 cm and its height is 5 cm . What is the area of the parallelogram?
In which phase of the Diesel cycle,do the high pressure and high temperature gases expand and perform mechanical work?
What is the main purpose of the boiler in a simple vapor power cycle of a steam power plant?
Which one of the following should be considered during a Brinell Hardness Test to accurately determine the hardness of a coarse material like a cast iron sample?
Which one of the following comparators is based on the principles of optics, using illumination, lenses, and mirrors to project a magnified silhouette of the part onto a viewing screen?
Complete the series:
96,48,24,12, ___