If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...? Mcqs

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

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The point through which a ray of light passes without changing its path is the _____...?

(A) Focal Point
(B) Principal Axis

(C) Optical Centre
(D) Centre of Curvature

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Gold and Silver are known as _________ metals ...?

(A) Coinage metals
(B) Noble metals

(C) Both A & B
(D) None of these

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Who is the known as the father of taxonomy...?

(A) Aristotle
(B) Fransco Redi

(C) Carolus Linnaeus
(D) Rachel Carson

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The key component of the scientific process is ______...?

(A) Hypothesis
(B) Observation

(C) Question
(D) Experimentation

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Which metal is called “metal of hope”...?

(A) Uranium
(B) Titanium

(C) Gold
(D) Platinum

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High solubility of fertilizers also degrades ecosystem through _____...?

(A) Acidification
(B) Erosion

(C) Salinity
(D) Eutrophication

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A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus number of ______...?

(A) Stays the same
(B) Decreases by 2

(C) Increases by 1
(D) Decreases by 4

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Which is the purest form of water...?

(A) Rain water
(B) Heavy water

(C) Tap water
(D) None of these

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Total number of moons in entire Solar System are:__________...?

(A) More than 100
(B) More Than 200

(C) More than 300
(D) More than 400

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