Multiple Choice
DVD uses
A) laser beam for both recording and playback
B) laser beam for recording and video head for playback
C) video head for recording and laser beam for playback
D) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q12: For a given carrier wave, maximum undistorted
Q13: In Pulse Code Modulation system<br>A)large bandwidth is
Q14: For telegraphy the most commonly used modulation
Q15: In Modulation, "carrier" is<br>A)resultant wave<br>B)speech voltage to
Q16: Circular polarization<br>A)is useful in reducing depolarization effect
Q17: A telephone channel requires a bandwidth of
Q18: The colour of an object is decided
Q19: A modem is classified as low speed
Q20: Commercial Frequency deviation of FM is<br>A)70 khz<br>B)75
Q21: The _speech is also called as reported