The velocity of sound in air at sea level is...? Mcqs

Latest MCQs

The velocity of sound in air at sea level is...?

(A) 881 meters per second
(B) 761 meters per second

(C) 661 meters per second
(D) 561 meters per second

Latest MCQs

Hydrometer is used to measure...?

(A) Acidity of water
(B) Specific gravity of a liquid

(C) Pollution in water
(D) Gravity of milk

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Dr Abdus Salam was awarded Nobel Prize having work on which basic forces...?

(A) Electromagnetic and Molecular
(B) Electromagnetic and Electromotive

(C) Weak and Electro Magnetic
(D) None of these

Latest MCQs

A pinhole camera consists of ____ lens:...?

(A) 0
(B) 1

(C) 2
(D) 3

Latest MCQs

The inner core of an optical fiber is __________ in composition...?

(A) Glass or plastic
(B) Copper

(C) Bimetallic
(D) Liquid

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Which unit is used to measure the distance of planets and stars from earth...?

(A) Light year
(B) Staller mile

(C) Centimeter
(D) None of these

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Sun's diameter is...?

(A) 3 million Km
(B) 2.5 million Km

(C) 1.4 million Km
(D) 1.8 million Km

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Which Pakistani Scientist was awarded Nobel Prize for physics in 1979...?

(A) Dr.Abdul Qadeer Khan
(B) Dr Muneer Ahmad

(C) Dr .Samar Mubarak
(D) Dr Abdus Salam

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When one acted as moderator in nuclear reactor...?

(A) Regular Water
(B) Graphite

(C) Heavy Water
(D) All Of Above

Latest MCQs

Which of the following gases has an important role in maintaining atmospheric temperature...?

(A) Nitrogen
(B) Argon

(C) Oxygen
(D) Carbon dioxide

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