The process of emission of electrons from the hot metal surfaces is called...? Mcqs

Latest MCQs

The process of emission of electrons from the hot metal surfaces is called...?

(A) Plastic emission
(B) Thermionic emission

(C) Static emission
(D) Current emission

Latest MCQs

When two identical atoms share electron pairs and exert force on each other than bond form is ______...?

(A) Non-polar covalent bond
(B) Polar covalent bond

(C) Double covalent bond
(D) Coordinate covalent bond

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The hormone which is clinically used as a bronchodilator and heart stimulant is:...?

(A) Epinephrine
(B) Norepinephrine

(C) Calcitonin
(D) Thyroxine

Latest MCQs

Which one of the following waves are used by the common TV remote control...?

(A) Radio waves
(B) Lasers

(C) Infrared waves
(D) Ultrasonic waves

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The size of Covid-19 virus is______...?

(A) 25-30KB
(B) 28-30KB

(C) 29-30KB
(D) None of these

Latest MCQs

Who came up with three laws of motion...?

(A) Galileo
(B) Albert Einstein

(C) Issac Newton
(D) Hubble

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The number of spark plugs needed in a diesel engine is ______...?

(A) Zero
(B) 1

(C) 2
(D) 4

Latest MCQs

The properties used for heat...?

(A) Hot, Energy, Cold
(B) Color, Smell, Sound

(C) , Heavy, Light, Hard
(D) Circle, Square, Point

Latest MCQs

Which of the following disorder is associated with inflammation of air passage ways...?

(A) Bronchitis
(B) Lung cancer

(C) Asthma
(D) Emphysema

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In Fishes excretory Product is__________...?

(A) Nitrogen
(B) Ammonia

(C) Uria
(D) Carbon dioxide

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