Science Quiz | General Knowledge Multiple Choice Questions and Answers | Page-11

(51) What is found in frequency modulation ?

[A] fixed frequency

[B] fixed dimension

[C] change in dimension only

[D] change in frequency and dimension

Answer: Option [A]

(52) Colour of light is related to it's :

[A] Frequency

[B] Velocity

[C] Amplitude

[D] None of the above

Answer: Option [A]

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(53) What principle / law explains the working of hydraulic brakes in automobiles ?

[A] Poiseuille’s principle

[B] Pascal’s law

[C] Bernoullis law

[D] archimede’s principle

Answer: Option [B]

(54) Which one of the following is used for sun glasses ?

[A] Crooks glass

[B] Pyrex glass

[C] Crystal glass

[D] None of the above

Answer: Option [A]

(55) Good conductor of electricity is

[A] kerosene

[B] paper

[C] dry air

[D] graphite

Answer: Option [D]

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