If output voltage is greater than input voltage, then transformer is :...? Mcqs

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If output voltage is greater than input voltage, then transformer is :...?

(A) Step up
(B) Step down

(C) Faulty
(D) None of These

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Burning of wood is a ______ change....?

(A) Chemical
(B) Physical

(C) Temporary
(D) Both A and B

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Halley’s Comet is the only known short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years. It last appeared in the inner parts of the Solar System in 1986 and will next appear in mid-_________...?

(A) 2065
(B) 2061

(C) 2040
(D) None of These

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Radio labeling and carbon dating also show some uses of radioactive isotopes in determining the ____ of fossils....?

(A) Size
(B) Age

(C) Shape
(D) Color

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Red color of tomato is due to___________...?

(A) Anthocyanin
(B) Xanthophyll’s

(C) Lycopene
(D) None of these

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How much percentage (%) of the Earth's Surface is covered with water...?

(A) 70%
(B) 60%

(C) 90%
(D) 75%

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Saliva helps in the digestion of...?

(A) Starch
(B) Proteins

(C) Lipids
(D) Fats

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A child rubbed two balloons with a piece of wool. Which of the following happens when the balloons are brought near each other...?

(A) The balloons will attract each other
(B) The balloons will repel each other

(C) The balloons will stick to the child's hair
(D) The balloons will make a loud noise

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What would happen to the escape velocity if the mass of the Earth were doubled, keeping the radius the same...?

(A) It would remain the same
(B) It would increase by a factor of 2sqrt{2}2​

(C) It would double
(D) It would decrease by a factor of 2sqrt{2}2

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Ultra Microscopic viruses are the main cause of__________...?

(A) Malaria
(B) Measles

(C) Mumps
(D) Cholera

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