Match List I (Quantity) with List II (Units) and select the correct answer using the codes given below the Lists

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Submitted by examrobotsa on

Q: 113 (IAS/1999)
Match List I (Quantity) with List II (Units) and select the correct answer using the codes given below the Lists
List IList II
I. High speed(A) Mach
II. Wavelength(B) Angstrom
III. Pressure(C) Pascal
IV. Energy(D) Joule

question_subject: 

Science

question_exam: 

IAS

stats: 

0,107,49,30,16,107,3

keywords: 

{'quantity': [0, 0, 0, 1], 'units': [1, 2, 4, 7], 'iv': [6, 110, 77, 8]}

Explanation:

Option-1 and 4 can immediately be dismissed as the high speed is not measured in Angstrom (unit of length used in quantum physics) and energy is not measured in Pascal (unit of pressure).

Option-2 isn`t correct either since it suggests Energy is measured in Pascal and Pressure in Joule, which is also incorrect.

Option-3 is therefore the correct answer as it aligns the correct units with the corresponding quantities: High speed is measured in Mach, where one Mach is equal to the speed of sound; Wavelength is measured in Angstrom, commonly used in nano and quantum technology; Pressure is measured in Pascal, standard unit of pressure in International System of Units (SI); and Energy is measured in Joule, the SI unit of work or energy. This matches the quantities with the correct units.