How does focal length of a convex lens change if violet light is used instead of red light.

How does the focal length of a convex lens change if monochromatic red light is used instead of monochromatic blue light?

Violet light is incident on a converging lens of focal length f. State with reasons how focal length of the lens will change, if the violet light is replaced by red light.

How does the focal length of a glass lens change when blue light is replaced by red light. Give reasons.

How does focal length of a convex lens change with increase in wavelength of incident light?

Briefly explain,how the focal length of a convex lens changes with increase in wavelength of incident light.

Explain briefly how the focal length of a convex lens changes with increase in wavelength of incident light.

How does focal length of a lens change when red light is replaced by violet light?

Red light is incident on a think converging lens of focal length f. Briefly explain how the focal length of the lens will change,if red light is replaced with blue light.