Increase of the size (length, area and volume) of a body due to change in temperature is called _____...? Mcqs

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Increase of the size (length, area and volume) of a body due to change in temperature is called _____...?

(A) Thermal Expansion
(B) Thermal Contraction

(C) Thermal Density
(D) Thermal Compression

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The mean distance of the earth from the sun is astronomical units is____________...?

(A) 3.7 AU
(B) 10 AU

(C) 1 AU
(D) 101 AU

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The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ...?

(A) red waves
(B) Infrared waves

(C) Ultrasonic
(D) super sonic

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Which of the following is a diverse group of hydrophobic molecules...?

(A) Carbohydrates
(B) Lipids

(C) Proteins
(D) Nucleic acids

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Diamond is an allotropic form of_______...?

(A) Carbon
(B) Hydrogen

(C) Nitrogen
(D) Silicon

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The time in which Earth completes its revolution around the Sun is________...?

(A) 365.25 days
(B) 340 days

(C) 325 days
(D) 360 days

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Silicon is an example of ______...?

(A) Conductor
(B) Insulator

(C) Resistor
(D) Semiconductor

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The luster of diamond is due to_________...?

(A) Reflection
(B) Total internal reflection

(C) Refraction
(D) None of these

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A Reflecting telescope consists of _____...?

(A) A primary lens and A secondary lens
(B) A primary lens and A secondary mirror

(C) A primary and A secondary mirror
(D) A primary mirror and A secondary lens

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A suspension of fine solid particles or liquid droplets, in air or another gas is called an...?

(A) Pneumatic
(B) Hydraulic

(C) Aerosols
(D) None

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