Telephone was invented by__________...? Mcqs

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Telephone was invented by__________...?

(A) Vint Cerf
(B) Charles Babbage

(C) Edison
(D) Alexander Graham Bell

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Latest MCQs

Titan, a moon of __________ , and Triton, a moon of _________ , have atmospheres mainly of _________....?

(A) Saturn, Jupiter, Hydrogen
(B) Uranus, Neptune, Nitrogen

(C) Saturn, Neptune, Nitrogen
(D) Mars, Venus, Hydrogen

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Which gas is responsible for fermentation...?

(A) Carbon Dioxide
(B) Nitrogen

(C) Oxygen
(D) None

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If proton number is 19, electron configuration will be ______...?

(A) 2, 8, 9
(B) 2, 8, 8, 1

(C) 2, 8, 1
(D) 2, 8, 3

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Color of the glow produced in the discharge tube:...?

(A) depends on the pressure in the discharge tube
(B) depends on the metal used as cathode

(C) depends on the gas used in the discharge tube
(D) does not depend on the nature of the gas used in the discharge tube

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What was the first planet to be discovered using a telescope...?

(A) Uranus
(B) Jupiter

(C) Venus
(D) Mercury

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Which of the following planets has the smallest diameters_____...?

(A) Mercury
(B) Marx

(C) Pluto
(D) Venus

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In chloroplast different pigments absorb light of different _____...?

(A) Intensity
(B) Wavelength

(C) Frequency
(D) Amplitude

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When an object is placed far away from the concave mirror its image will be...?

(A) Real
(B) Inverted

(C) Smaller in size than the object
(D) All of these

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The speed of the sound in air is ______...?

(A) 143 m/s
(B) 243 m/s

(C) 343 m/s
(D) 443 m/s

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