Science- Sound

Female vocal cord is longer ✘ Male vocal cord is shorter ✘ Male vocal cord is longer ✘ The concept is not related ✔

Higher than 20,000 Hz ✘ Higher than 10,000 Hz ✘ Lower than 20,000 Hz ✘ Lower than 10,000 Hz ✔

200-2000 Hz ✘ 20-20,000 Hz ✘ 2-20000 Hz ✘ 2000-200000 Hz ✔

No sound ✘ feeble ✘ loud ✘ No relation between amplitude and sound ✔

60 ✘ 40 ✘ 120 ✘ 80 ✔

Kilometer ✘ Hertz ✘ gram ✘ Degree centigrade ✔

Amplitude of oscillation ✘ Pitch of oscillation ✘ Frequency of oscillation ✘ None of the above ✔

Vibratory motion ✘ Translatory motion ✘ Oscillatory motion ✘ None of these ✔

vacuum ✘ air ✘ water ✘ solids ✔

Non-Vibrating objects only ✘ Vibrating and non- vibrating objects ✘ Vibration has no relation to sound ✘ Vibrating objects only ✔