The fundamental frequency of a guitar is string 220 Hz, the frequency of the second harmonic is...? Mcqs

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The fundamental frequency of a guitar is string 220 Hz, the frequency of the second harmonic is...?

(A) 220 Hz
(B) 440 Hz

(C) 320 Hz
(D) 620 Hz

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The microtubules arranged in a very particular pattern to form centriole are _____ in number....?

(A) 26
(B) 27

(C) 23
(D) 25

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Which one of the following is not a advantage of friction...?

(A) Walking
(B) Breaking

(C) Securing knots
(D) Fasteners

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Which isotope is used to determine the accumulation rates of pollutants in layers of soil...?

(A) Phosphorus - 32
(B) Carbon - 14

(C) Lead - 210
(D) Nitrogen - 15

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Sound travels slowest in which one of the following...?

(A) Air
(B) Water

(C) Steel
(D) Diamond

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Activity of enzymes can be enhanced by ____...?

(A) Activator
(B) Inhibitor

(C) Substrate
(D) Coenzyme

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The particles in a liquid have the following movement...?

(A) Move randomly with unlimited space
(B) Move randomly with limited space

(C) Vibrate at a fixed position
(D) Vibrate randomly with unlimited Space

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In a liquid, some energetic molecules break free from the surface even when the liquid is too cold for bubbles to form. What is the name of this process...?

(A) Boiling
(B) Condensation

(C) Convection
(D) Evaporation

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Fat provides _______ as much energy as the same amount of carbohydrate....?

(A) Half
(B) Twice

(C) Same
(D) One-quarter

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Larva of butterfly is also called...?

(A) Eggs
(B) Caterpillar

(C) Pupa
(D) Adult

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