question_answer

Match List-I with List-II and select the correct answer using the codes given below the lists:

List-I (Measuring device)		List-II (Parameter measured)
A.	Diffraction grating	1.	Smaller angular deviations on long flat surfaces
B.	Optical flat	2.	On-line measurement of moving parts
C.	Auto collimators	3.	Measurement of gear pitch
D.	Laser scan micrometer	4.	Surface texture using interferometry
		5.	Measurement of very small displacements

Codes:

A) A\[\to \]5, B\[\to \]4, C\[\to \]2, D\[\to \]1

B) A\[\to \]3, B\[\to \]5, C\[\to \]1, D\[\to \]2

C) A\[\to \]3, B\[\to \]5, C\[\to \]4, D\[\to \]1

D) A\[\to \]5, B\[\to \]4, C\[\to \]1, D\[\to \]2