An optical instrument which is used measure the properties of visible light is called...? Mcqs

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An optical instrument which is used measure the properties of visible light is called...?

(A) Microscope
(B) Telescope

(C) Spectroscope
(D) Oscilloscope

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Which of the following surfaces gives diffused reflection...?

(A) Polished metal surface
(B) Calm surface of a lake

(C) Mirror
(D) Roadway

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Which living thing would decrease, if the number of frogs increased...?

(A) Hawks
(B) Snakes

(C) Plants
(D) None

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The sun appears red at sunrise and sunset while it appears white at noon, because...?

(A) Of refraction
(B) It is cooler at sunrise and at sunset

(C) Of diffraction leading to red end of the spectrum reaching the earth.
(D) Of Scattering of light due to dust particles and air molecules.

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Ultra Microscopic viruses are the main cause of__________...?

(A) Malaria
(B) Measles

(C) Mumps
(D) Cholera

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Oxidation is a chemical reaction involving the __________...?

(A) Gain of Electrons
(B) Loss of Electrons

(C) Gain of Protons
(D) Loss of Protons

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The flash of light from lightening travels at about ____...?

(A) 2 x 10^5 m/s
(B) 1 x 10^4 m/s

(C) 5 x 10^6 m/s
(D) 3 x 108 m/s

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What kind of weathering takes place on the valley side above the surface of the glacier...?

(A) Plucking
(B) Abrasion

(C) Chemical weathering
(D) Frost shattering

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Glucose syrup is made from__________...?

(A) oat
(B) wheat

(C) maize
(D) rice

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Which blood cells are called ‘Soldiers’ of the body...?

(A) White Blood Cells
(B) Platelets

(C) Red Blood Cells
(D) None of the above

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