Which from the following is true for "Sound"...? Mcqs

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Which from the following is true for "Sound"...?

(A) Sound cannot travel through a vacuum
(B) Sound cannot travel through gases

(C) Sound cannot travel through liquids
(D) Sound cannot travel through solids

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Why is the Ozone important for mankind...?

(A) Protection from ultraviolet rays of sun
(B) It releases oxygen in the air

(C) It maintains temperature of the earth
(D) It releases hydrogen in the atmosphere

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Chronometer is used to measure...?

(A) Velocity
(B) Pressure

(C) Time
(D) None of these

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Nobel Prize in Physics was awarded to Dr.Abdul Salam in the year...?

(A) 1969
(B) 1978

(C) 1966
(D) 1979

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H=100-4t The equation above can be used to model the number of hours h until a gallon of milk held at a temperature of t, in degrees Celsius, goes sour. Based on the model, which of the following is the best interpretation of the number 4 in the equation...?

(A) An increase of 1 degree Celsius will make a gallon of milk go sour 4 hours faster
(B) An increase of 1 degree Celsius will make 4 gallons of milk go sour 1 hour faster

(C) An increase of 4 degrees Celsius will make a gallon of milk go sour 1 hour faster
(D) An increase of 4 degrees Celsius will make a gallon of milk go sour 4 hours faster

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What is the S.I unit of temperature...?

(A) Kelvin
(B) Centigrade

(C) Fahrenheit
(D) None of these

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Celestial body that affects tides of oceans is...?

(A) Sun
(B) Moon

(C) Galaxy
(D) Meteorite

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The first Astronaut to set foot on moon was...?

(A) Yuri Gagarin
(B) Edmund Hailey

(C) Tamayo Mendez
(D) Neil Armstrong

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Sulphur and Nitrogen cause _____...?

(A) Greenhouse Effect
(B) Ozone Layer Depletion

(C) Acid Rain
(D) None of these

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At what temperature are Celsius and Fahrenheit equal...?

(A) 10 degree
(B) -10 degree

(C) 40 degree
(D) -40 degree

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