Sounds Waves And Motion - Practice Test

(A) Amplitude modulation

(B) Frequency modulation

(C) Phase modulation

(D) Angle modulation

(A) Amplitude modulation

(A) Audio and video both start simultaneously

(B) Audio is heard immediately but video starts later because video needs some warm up time

(C) Video starts immediately but audio is heard later because sound travels at a lesser speed than light

(D) It depends on the T.V. brand

(A) Audio and video both start simultaneously

(A) It travels at a speed of 330 - 350 m/s

(B) These are mechanical waves

(C) They do not require any type of medium to travel

(D) It cannot travel long distances

(C) They do not require any type of medium to travel

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(C) (A) is true, but (R) is false

(D) (A) is false, but (R) is true

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

(A) Polarised

(B) Ultraviolet

(C) Infrared

(D) X-ray

(C) Infrared

Sounds Waves And Motion - Study Mode