Question

A woman tunes her radio to a station broadcasting on 200 m.
What does the 200 m tell her about the radio wave?
A its amplitude
B its frequency
C its speed
D its wavelength

Answer 1

what do you think?

different stations are broadcasted all together.. how do you think we do that? how can all stations broadcast their own info without getting all jumbled up?

Answer 2

iam confused between A and D

Answer 3

did you think about what i asked you?
how different stations broadcast their own messages ? all the different messages are continuously broadcasted.. don't they all interfere with each other?
how do we avoid that? if you understand that.. u ll get your answer ?

Answer 4

so the answer is D

Answer 5

amplitude is a measure of the distance of a crest or trough and wavelength is the measure of one radiowaves am i right

Answer 6

unless u answer my question i won't reply to you :P

Answer 7

sorry for breaking the suspense,,,,,,,,but i guess Mashy's talking about Amplitude modulation

Answer 8

Nope.. m just talking about the basic idea of communication.. :P

Answer 9

ohk!

Answer 10

the answer cud have been D)Amplitude also no?

Answer 11

thank you for teaching me :P

Answer 12

*A)amplitude

Answer 13

But im wrong,,,The unit of Amplitude must have been the unit of ELECTRIC or MAGNETIC fIELDs ,,ie N/C or Tesla

Answer 14

but ur 200m suggests it must be Wavelength ,,as unit of wavelegth is metre

Answer 15

But ,, the answer IS FREQUENCY,,,,

Answer 16

yes D was the answer on the markshceme and thank you :D

Answer 17

perceiving that u meant 200M and not 200m ,, ,,200M means 200 MegaHertz so frequency......,,,,,,,But i checked my radio just now,,,200m is THERE on the radio,,,under SW (short wave) and they also mentioned METERS at the end,,,so even i thought wavelenth is appropriate

Answer 18

yes it IS Wavelength check this http://en.wikipedia.org/wiki/Shortwave_radio