For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________...? Mcqs

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For an object to escape from the surface of a celestial body, the kinetic energy of the object must be: __________...?

(A) Less than the gravitational potential energy of the body
(B) Equal to the gravitational potential energy of the body

(C) Greater than the gravitational potential energy of the body
(D) None of the above

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Which instrument is used for viewing the sun...?

(A) Stroboscope
(B) Heliograph

(C) Solograph
(D) None of these

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Which element has the most % in human body...?

(A) Oxygen 65%
(B) Calcium 75%

(C) Hydrogen 10%
(D) Carbon 18%

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Pupa of butterfly is also called...?

(A) Chrysalis
(B) Eggs

(C) Larva
(D) Adult

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_____ species are given scientific names....?

(A) All
(B) Some

(C) Few
(D) None

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Which one of the following is oxidizing agent...?

(A) Al
(B) H2S

(C) Cl2
(D) NaH

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Scalding with steam is more severe than scalding by boiling water because_______...?

(A) Steam can penetrate the skin
(B) Steam is at a higher temperature

(C) Steam contains more energy than boiling water
(D) Steam is at a higher pressure

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Change of state form liquid to solid is _________...?

(A) Boiling
(B) Freezing

(C) Evaporation
(D) None of these

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The causes of the echo is _____...?

(A) Absorption
(B) Dispersion

(C) Reflection
(D) Refraction

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You should not do one of the following while handling a clinical thermometer...?

(A) Wash it before use
(B) Run

(C) Stay at one place
(D) Place it in cover after use

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