When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________...? Mcqs

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When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________...?

(A) Visible
(B) Transparent

(C) Invisible
(D) opaque

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Which one of the following of glass can cut ultraviolet rays...?

(A) Jena Glass
(B) Soda Glass

(C) Pyrex Glass
(D) Crookes Glass

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Lactic Acid is found in ______...?

(A) Yogurt
(B) Milk

(C) Butter
(D) Ice Cream

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What is the magnetic field at any point in the open space inside the toroid...?

(A) zero
(B) one

(C) Depends on the current in the turns
(D) Depends on number of turns

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In the human body there are more than _____ known enzymes....?

(A) 800
(B) 1000

(C) 1200
(D) 1500

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In a transverse wave, the ______ is the distance b/w its two adjacent crests or troughs...?

(A) Wavelength
(B) Frequency

(C) Amplitude
(D) Velocity

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What is the direction of the magnetic field lines inside a bar magnet...?

(A) From north pole to south pole
(B) South pole to north pole

(C) From side to side
(D) There are no magnetic field lines

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What is the average weight of Human Heart...?

(A) 300 gram
(B) 350 gram

(C) 400 gram
(D) 450 gram

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Laughing gas has chemical composition of following two elements ...?

(A) Nitrogen + Hydrogen
(B) Nitrogen + Carbon

(C) Nitrogen + Oxygen
(D) Oxygen + Carbon

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What is the main component/constituent of the cell wall that supports the plant cell and gives it a regular shape...?

(A) Protein
(B) Starch

(C) Lipid
(D) Cellulose

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