Question

This image represents a wave.

What would a wave look like if it had less amplitude but the same wavelength?
http://static.k12.com/calms_media/media/1363000_1363500/1363180/1/955a130f6a36bd2e32e972bb512893bf9e47ab67/MS_PHYS_SCI_287825.jpg

Answer 1

A.
http://static.k12.com/calms_media/media/1363000_1363500/1363184/1/79c2124b4629efd12e4026f44770785404846f45/MS_PHYS_SCI_287825_D.jpg

B.
http://static.k12.com/calms_media/media/1363000_1363500/1363182/1/70628abaca68ee90745dc0ca30546f5e7c24b1fb/MS_PHYS_SCI_287825_B.jpg

C.
http://static.k12.com/calms_media/media/1363000_1363500/1363181/1/c4d6bd706bca38d9436d92124f764a31ae829a6b/MS_PHYS_SCI_287825_A.jpg

D.
http://static.k12.com/calms_media/media/1363000_1363500/1363183/1/50fb99cb46133c1a2b3892d2f7c64cf59ca66154/MS_PHYS_SCI_287825_C.jpg

Answer 2

??

Answer 3

@Abhishek1997 @IhteshamMalik

Answer 4

Yup, it is B since the wavelength is already kept fixed.

Answer 5

Coil the wire around the nail. Connect one end of the wire to the positive battery terminal. Connect the other end of the wire to the negative battery terminal.

What has been made by making this series circuit?



A.
an electromagnet

B.
a galvanometer

C.
an electric nail

D.
a stronger battery

http://static.k12.com/calms_media/media/1366500_1367000/1366619/1/b8e2002d599cfd5effbec3dcd78f2438989b4e79/MS_PHYS_SCI_287782.jpg

Answer 6

does anyone know?

Answer 7

@Abhishek1997

Answer 8

@Saeeddiscover

Answer 9

Of above question its not B.

Answer 10

Of first question is C..

Answer 11

then what is it?

Answer 12

Its an electromagnet.

Answer 13

@IhteshamMalik are you sure?

Answer 14

Yup, because amplitude is not same but wavelegth is same. in B both amplitude and wavelength are same... but in C wavelength is same and amplitude is differ... lower amplitude is more than upper.. so above aplitude is less.

Answer 15

are you positive?

Answer 16

Yup 99.9%

Answer 17

Which can be used to determine if an electromagnet is working?

A.
galvanometer

B.
compass

C.
a permanent magnet

D.
a switch

Answer 18

@IhteshamMalik in b the amplitude is the same?!!

Answer 19

Compass

Answer 20

Use this concave lens with the arrows representing beams of light to answer this question.

Which illustrates how light will behave when it strikes a concave lens?
http://static.k12.com/calms_media/media/1366500_1367000/1366633/1/8d8e85789b0f8ce4a6b7f397099dfb4fb7f29a44/MS_PHYS_SCI_287831.jpg

Answer 21

Yup its same... count the lines of the graph to check this...

Answer 22

A.
http://static.k12.com/calms_media/media/1366500_1367000/1366635/1/fc4dc2518977e206a17f4483020570f00cdac284/MS_PHYS_SCI_287831_B.jpg

B.
http://static.k12.com/calms_media/media/1366500_1367000/1366637/1/b98b36a397e9fb1449f54675e88c806a8011a0a0/MS_PHYS_SCI_287831_D.jpg

C. http://static.k12.com/calms_media/media/1366500_1367000/1366634/1/d232c942df14c33e2f7f611f7897f60c8ebe442b/MS_PHYS_SCI_287831_A.jpg

D.
http://static.k12.com/calms_media/media/1366500_1367000/1366636/1/810206628181e997c20ffeb82e1016437daa4fab/MS_PHYS_SCI_287831_C.jpg

Answer 23

You are giving help in a wrong way. You had better give help on things that you already know.

Answer 24

FIne.