The speed of sound in aluminium is _____...? Mcqs

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The speed of sound in aluminium is _____...?

(A) 5620 m/s
(B) 6420 m/s

(C) 7220 m/s
(D) 4820 m/s

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When water vapours are cooled, energy will be released and gaseous state will convert into liquid water. This process is known as...?

(A) Evaporation
(B) Condensation

(C) Melting
(D) Freezing

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____, days become longer and night become shorter....?

(A) Autumn
(B) Summer

(C) Winter
(D) Spring

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Cusec is a unit of _________...?

(A) Area
(B) Time

(C) Distance
(D) mass

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A part of maize seed that contains stored food is called...?

(A) Embryo
(B) Endosperm

(C) Seed coat
(D) Cotyledon

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What will be the result if you put yeast in dough...?

(A) The dough will become sour
(B) The dough will become harder

(C) The dough will become smaller
(D) The carbon dioxide will be released

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When the moon comes in front of the sun and blocks most of the sunlight from reaching the earth is known as...?

(A) A Solar Eclipse
(B) A Lunar Eclipse

(C) A Venus Eclipse
(D) A Earth Eclipse

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Periscope is another optical instrument that works on the principle of total ____...?

(A) Refraction
(B) Diffraction

(C) External Reflection
(D) Internal Reflection

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Oxygen belongs to group VIA so number of electrons in its valence shell are _____...?

(A) 3
(B) 4

(C) 5
(D) 6

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The heaviest naturally-occurring element is_________...?

(A) Radium
(B) Platinum

(C) Uranium
(D) Cadmium

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