If the green leaves are placed under red light, their color will become________...? Mcqs

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If the green leaves are placed under red light, their color will become________...?

(A) Green
(B) Black

(C) Red
(D) Blue

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The presence of a magnetic field can be detected by _______...?

(A) Small mass
(B) Stationary positive charge

(C) Stationary negative charge
(D) Magnetic compass

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Which are the only two elements on the periodic table that are liquid at room temperature...?

(A) Mercury and Bromine
(B) Carbon and helium

(C) Nitrogen and Hydrogen
(D) Oxygen and Neon

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Quality rating of deisel is called...?

(A) Octane
(B) Cetane

(C) Protane
(D) Butane

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4th and 5th period in periodic table are known as...?

(A) Short period
(B) Long period

(C) Normal period
(D) Very long period

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Snowfall is required from alleviation of mountain ______...?

(A) 36 - 38 degree
(B) 30 - 34 degree

(C) 38 - 40 degree
(D) None of these

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If an enclosed gas container with moveable piston is heated. What will happen...?

(A) Volume will be decreased
(B) Volume will remain constant

(C) Volume will be increased
(D) Pressure will be increased

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Lake, sea, wetland, river, ocean, pond is/are an examples of...?

(A) Water Environments
(B) Land Environments

(C) Both A and B
(D) None

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Transfer of internal energy by collision of particles and movements of electrons within the body is called...?

(A) Conduction
(B) Convection

(C) Radiation
(D) Insulation

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If a machine performs 20 J of work in 10 sec. then it power is ______...?

(A) 200 watt
(B) 20 watt

(C) 2 watt
(D) 0.2 watt

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