Frequency Question

Hi guys,

I need help on question 6.
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202013%20-%20QP/6PH02_01_que_20130118.pdf

I know that it takes 20 seconds to complete 1 wave, so 1/20 =0.05, but this is not the right answer.

Thanks guys!

Reply 1

Protoxylic

14

Original post by ΘTheta

Hi guys,

I need help on question 6.
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202013%20-%20QP/6PH02_01_que_20130118.pdf

I know that it takes 20 seconds to complete 1 wave, so 1/20 =0.05, but this is not the right answer.

Thanks guys!

Make sure you are reading the scale correctly. The unit of frequency is Hz or s^-1.

Reply 2

lerjj

13

Original post by ΘTheta

Hi guys,

I need help on question 6.
http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/January%202013%20-%20QP/6PH02_01_que_20130118.pdf

I know that it takes 20 seconds to complete 1 wave, so 1/20 =0.05, but this is not the right answer.

Thanks guys!

Reread the question. What does it say the x-gain is?

Reply 3

ΘTheta

OP

10

Original post by lerjj

Reread the question. What does it say the x-gain is?

Original post by Protoxylic

Make sure you are reading the scale correctly. The unit of frequency is Hz or s^-1.

Is the answer 50Hz.

So 1 second = 1000 milliseconds. 1 wave takes 20 milliseconds (0.02 seconds) to complete. So since f=1/t, f=1/0.02 = 50Hz. Am I correct?

Thanks for your help guys!

Reply 4

Protoxylic

14

Original post by ΘTheta

Is the answer 50Hz.

So 1 second = 1000 milliseconds. 1 wave takes 20 milliseconds (0.02 seconds) to complete. So since f=1/t, f=1/0.02 = 50Hz. Am I correct?

Thanks for your help guys!

Correct.

Reply 5

lerjj

13

Original post by ΘTheta

Is the answer 50Hz.

So 1 second = 1000 milliseconds. 1 wave takes 20 milliseconds (0.02 seconds) to complete. So since f=1/t, f=1/0.02 = 50Hz. Am I correct?

Thanks for your help guys!

Should be.

Frequency Question

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you