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]
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]