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

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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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Optic fibers are mainly used for which of the following:...?

(A) Communication
(B) Weaving

(C) Food indudtry
(D) None of these

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When something changes position, it is in...?

(A) Rest
(B) Friction

(C) Motion
(D) Gravity

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The approximate intensity level of the sound which can cause damage to the ear drum is...?

(A) 20 dB
(B) 60 dB

(C) 100 dB
(D) 160 dB

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Proteins are made up of _________...?

(A) Polynucleotide
(B) Polypeptide

(C) Oxyacetylene
(D) None of these

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Which rays are used for sterilization of medical instruments...?

(A) α-rays
(B) β-rays

(C) γ-rays
(D) x-rays

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Who invented the Hot Air Balloon...?

(A) Davy
(B) Montgolfier

(C) Edison
(D) Jarvik

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Which of the following has the highest surface tension...?

(A) Glycerol in water
(B) Detergent in water

(C) Soap in water
(D) Water

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When a patient’s immune system becomes reactive to a drug, this is an example of...?

(A) Super infection
(B) Drug resistance

(C) Allergy
(D) none

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On passing through food stuff, X-ray can kill the___________...?

(A) Fungus
(B) Virus

(C) Bacteria
(D) insects

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