The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...? Mcqs

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The Velocity of light in a diamond is (whereas the refractive index of a diamond with respect to vacuum is 2.5)...?

(A) 5x10^8m/s
(B) 2.5x10^8m/s

(C) 1.2x10^10m/s
(D) 1.2x10^8m/s

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The planet retains an atmosphere when...?

(A) Gravity is low and temperature of atmosphere is great
(B) Gravity and temperature both are great

(C) Gravity and temperature both are constant
(D) Gravity is great and temperature of atmosphere is low

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In that the half of the Earth which is facing the sun, there is...?

(A) Day
(B) Night

(C) Winter
(D) Both A and B

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Earthquakes are caused by:...?

(A) Landslide
(B) Eruption of volcanoes

(C) Tectonic plates
(D) All of these

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How many planets in Solor Syestem...?

(A) 4
(B) 5

(C) 6
(D) 8

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

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Kidney disease happens due to overdose of...?

(A) Vitamin A
(B) Vitamin B

(C) Vitamin C
(D) Proteins

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Which one among the following is a hydrocarbon compound...?

(A) Candle wax
(B) Polyurethane

(C) Glycerol
(D) Aspirin

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Which fruit can a diabetic patient eat freely...?

(A) Apple
(B) Banana

(C) Orange
(D) None of these

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Solar energy is radiated in the form of...?

(A) Transverse wave
(B) Electromagnetic waves

(C) Infrared wave
(D) None of these

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