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

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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

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What is Dry Ice...?

(A) Solid Oxygen
(B) Solid Carbon Dioxide

(C) Solid Hydrogen
(D) Solid Nitrogen

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De Broglie extend the wave particle duality to electron in ______...?

(A) 1920
(B) 1922

(C) 1923
(D) 1925

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Adult human brain is about_________% of the total body weight....?

(A) 2%
(B) 3%

(C) 7%
(D) 8%

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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The heaviest man made element found so for is__________...?

(A) Promethium
(B) Ununoctium

(C) Francium
(D) Technetium

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Waves having crests and troughs with oscillation (movements) of particles perpendicular to the direction of wave propagation are named as...?

(A) Longitudinal Waves
(B) Electromagnetic Waves

(C) Transverse Waves
(D) Mechanical Waves

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Who invented the safety pin...?

(A) Charles Goodbye
(B) steward Harshone

(C) Walter Hunt
(D) A.Rose

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Apart from Venus, which planet rotates from east to west...?

(A) Jupiter
(B) Mars

(C) Uranus
(D) Neptune

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The male gonads in rabbit are ______...?

(A) Testis
(B) Ovaries

(C) Scrotal sac
(D) Vas deferens

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