Transistor is a device that convert weak signal into__________...? Mcqs

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Transistor is a device that convert weak signal into__________...?

(A) small signal
(B) strong signal

(C) both
(D) none

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When a light ray enters from a denser medium to a rare medium, it bends ______...?

(A) Perpendicular to normal
(B) Parallel to normal

(C) Toward normal
(D) Away from normal

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How Many Megapixels is the Human Eye...?

(A) 570
(B) 576

(C) 560
(D) None of These

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Hygrometer is used for measuring the ______...?

(A) Humidity of air
(B) Speed of sound

(C) Density of milk
(D) Specific gravity of liquids

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A wheel with pointed edges like teeth are...?

(A) Pulley
(B) Gear

(C) Axle
(D) Sprocket

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Which of the following cannot be polarized...?

(A) Radio waves
(B) Ultraviolet rays

(C) X-rays
(D) Ultrasonic waves

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The functional group -COOH is used for ______...?

(A) Alkynes
(B) Alcohols

(C) Phenols
(D) Carboxylic acids

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__________ is the atmospheric layer wherein the weather occurs....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Thermosphere

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Which part of cell controls all the chemical reactions of the cell and it contains chromosomes...?

(A) Cell membrane
(B) Cytoplasm

(C) Vacuoles
(D) Nucleus

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Which colour has smallest wavelength in the spectrum of white light...?

(A) Red
(B) Blue

(C) Yellow
(D) Violet

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