The wavelength of light in given material equals…?

Question

a- the speed of light in the material times frequency

b- frequency times the speed of light in the material

c- the speed of light divided by frequency

d- frequency divided by the speed of light in the material

Answer 1

well if the speed of light is a distance per second,

and the frequency is a number of complete ^v ^v  zig-zags,

like waves/second,

then higher frequency would imply shorter wavelength, because like a slinky, you have to compress it to get more rings per inch.

Speed of light changes inside various materials like water and glass, otherwise it's constant. suppose its 300 million meters per second. if its frequency per second (hz) were 1, the wavelength would be 300 million meters.

If it were 2 hz, 150 million

4 hz would be 75 million,

and 1000 hz = 300,000.

1 million hertz would be 300 meter wavelengths, and

100 million hertz would be 3 meter wavelengths, the same as radio waves.

Answer 2

c- the speed of light divided by frequency

Answer 3

ans)c- the speed of light divided by frequency

bcoz,

speed =distance/time

=wavelength * frequency