If a metal block applies a force of 20 N on an area of 5 cm2. Find the pressure being applied by the block on the area of _____ ...? Mcqs

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If a metal block applies a force of 20 N on an area of 5 cm2. Find the pressure being applied by the block on the area of _____ ...?

(A) 100 Ncm^-2
(B) 0.8 Ncm^-2

(C) 0.25 Ncm^-2
(D) 4 Ncm^-2

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Stimulus is detected by ______...?

(A) Receptor
(B) Effector

(C) Nerve
(D) All of these

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What is the smallest unit of life...?

(A) Cell
(B) Atom

(C) Tissue
(D) Organ

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During germination of maize seed, first part arises from the seed is...?

(A) Radical Root
(B) Cotyledon

(C) Hypocotyl
(D) Plumule

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The solar wind can reach speeds of up to...?

(A) 600 km/s
(B) 700 km/s

(C) 800 km/s
(D) 650 km/s

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Sun is moving around the centre of the galaxy at a velocity of _______ km/s...?

(A) 205
(B) 210

(C) 215
(D) 220

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If we dissolve sand into the water, then the mixture is said to be _______...?

(A) Solution
(B) Suspension

(C) Colloids
(D) Concentrated solution

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A process of separating insoluble solids from a mixture is called...?

(A) Crystallization
(B) Filtration

(C) Distillation
(D) Sublimation

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Comets are made mostly of ______________...?

(A) Ice and dust
(B) Dust and lights

(C) Ice, dust and lights
(D) All of the above

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Which organ is made up of air carrying tubes and tiny sacs...?

(A) Brain
(B) Lungs

(C) Liver
(D) Heart

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