Question

Match the statements of Column A with those of Column B

Column A	Column B
(A) Pitch	(a) Hertz
(B) Wavelength	(b) Centimetre
(C) Loudness	(c) No unit
(D) Amplitude	(d) Decibel

• A. A → c; B → b; C → d; D → b
• B. A → a; B → b; C → d; D → b
• C. A → c; B → d; C → b; D → a
• D. A → c; B → d; C → a; D → b

Answer 1

The correct option is A

A → c; B → b; C → d; D → b

Part A:

Pitch is the degree of highness or lowness of a tone. It is unitless.

So, $A\stackrel{}{\to c}$

Part B:

Wavelength is the distance between successive crests.

It is measured in m or cm.

So,$B\to b$

Part C:

Loudness is the capability of making noise.

It is measured in decibels.

So, $C\to d$

Part d:

Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Its unit is a centimeter.

So, $D\to b$.

Hence the correct option is (A)$A\to c;B\to b;C\to d;D\to b$