– The focal length of a lens ….
A. Increases from red to violet end of the spectrum
B. Decreases from red to the violet end of the spectrum
C. Is equal for all colors of the spectrum
D. Independent of the wavelength of light
Answer:B
– The focal length of a lens ….
A. Increases from red to violet end of the spectrum B. Decreases from red to the violet end of the spectrum C. Is equal for all colors of the spectrum D. Independent of the wavelength of light