A process in which light rays falls on any material object and these rays bounce back is known as...? Mcqs

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A process in which light rays falls on any material object and these rays bounce back is known as...?

(A) Reflection
(B) Refraction

(C) Diffusion
(D) Absorption

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Which animal has no vocal chords ...?

(A) Lion
(B) Zebra

(C) Dolphin
(D) Giraffes

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The type of mirrors used in the headlamp of cars is ____________...?

(A) Parabolic concave
(B) Plane

(C) Spherical convex
(D) Cylindrical concave

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In the structure of fiber, the light is guided through the core due to total internal:...?

(A) Reflection
(B) Refraction

(C) Diffraction
(D) None of these

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Which of the following is the major constituents of LPG...?

(A) methane
(B) ethane

(C) hydrogen
(D) butane

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What melted rock eventually becomes lava...?

(A) Iron
(B) Metals

(C) Magma
(D) Coal

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If proton number is 19, electron configuration will be ______...?

(A) 2, 8, 9
(B) 2, 8, 8, 1

(C) 2, 8, 1
(D) 2, 8, 3

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Other name of red blood cells is ____________...?

(A) Erythrocytes
(B) Leukocytes

(C) Thrombocytes
(D) None of these

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The audible range of normal dolphin ear is ____...?

(A) 20 Hz to 120 kHz
(B) 20 Hz to 20 kHz

(C) 20 Hz to 100 kHz
(D) 20 Hz to 50 KHz

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Stomata present in leaves help the plant in ______...?

(A) Absorption
(B) Evaporation

(C) Chlorophyll
(D) Chromoplast

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