Nuclear radiation is emitted by those elements whose:...? Mcqs

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Nuclear radiation is emitted by those elements whose:...?

(A) molecules are stable
(B) molecules are unstable

(C) nuclei are stable
(D) nuclei are unstable

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Newton metre is a unit of __________....?

(A) Substance
(B) Length

(C) torque
(D) Work

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The shortest path of reflex action consists of _____...?

(A) 1 neuron
(B) 2 neurons

(C) 3 neurons
(D) Many neurons

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The type of seed production without fusion of male and female gametes is ______...?

(A) Parthenocarpy
(B) Apomixes

(C) Grafting
(D) Scion

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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As temperature increases, initially the rate of reaction will _____...?

(A) Decrease
(B) Remain constant

(C) Fluctuate
(D) Increase

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The amount of space a material object occupies is called its...?

(A) Volume
(B) Matter

(C) Mass
(D) Force

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The fastest bird is the Peregrine Falcon, clocked at speeds of up to _____ miles per hour...?

(A) 240
(B) 250

(C) 260
(D) 230

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How many elements are in modern periodic table...?

(A) 118
(B) 181

(C) 108
(D) 188

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Process where nitrogenous compound of living organism convert into nitrates is called...?

(A) Ammonification
(B) Nitrification

(C) Denitrification
(D) Deamination

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