The order of speed of the sound in different mediums from faster to slowest is ______...? Mcqs

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The order of speed of the sound in different mediums from faster to slowest is ______...?

(A) Gas → Liquid → Solid
(B) Liquid → Solid → Gas

(C) Solid → Liquid → Gas
(D) Gas → Solid → Liquid

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Speed of sound in air is _______km/h...?

(A) 1347
(B) 243

(C) 1235
(D) 1495

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Enzymes catalyze chemical reaction by _____ the activation energy....?

(A) Raising
(B) Lowering

(C) Maintaining
(D) Ignoring

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“Beaufort Scale” is used to measure____________...?

(A) Wind Velocity
(B) Air Pressure

(C) Wind Direction
(D) Humidity

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_______________ causes biomagnification problem in the Ecosystem....?

(A) Lead
(B) Mercury

(C) Chromium
(D) Copper

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When sound travels through air, the air particles _____...?

(A) Vibrate along the direction of wave propagation
(B) Vibrate perpendicular to the direction of wave propagation

(C) Vibrate but not in any fixed direction
(D) Vibrate and move in a straight line

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Which woody raw material is used for the manufacture of paper pulp...?

(A) Cotton
(B) Poplar

(C) Bagasse
(D) Rice straw

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Cooking gas is mixture of which two gases...?

(A) Hydrogen and oxygen
(B) Methane and CO2

(C) Methane and oxygen
(D) None of these

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The moon’s surface has been explored by how many astronauts...?

(A) 10
(B) 11

(C) 12
(D) 13

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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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