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How does the focal length of convex change if monochromatic red light is used instead of monochromatic blue light?
Wiki User
∙ 15y ago
when monochromatic red light passes through convex lens thab its focal length decreases where as in d case of blue light it increases.............
Wiki User
∙ 15y ago
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How does focal length of convex lens change if monochromatic red light is used instead of monochromatic blue light?
Blue light travels slower in glass then red and so has a higher index of refraction. That results in a shorter focal length. Search Chromatic aberration in Wikipedia.org, "The World's Encyclopedia"
How does a focal length change as a convex lens becomes flatter?
d focal lenght increases due to increases in the distance between centre of curvature and the centre of the convex lens on the principal axis
What will happen to the focal length of a concave mirror or a convex mirror when the incident violet light on them is replaced by red light?
Nothing. The focal length is defined as point where all of the light converges after passing through the lens ( for a convex mirror)and only depends on the mirror's curvature. So changing the incident light ray will cause no change in the focal length of the mirror.
Which lens has a greater power convex lens of focal length 10 cm or a convex lens of focal length 20cm?
Power is inversely related to the focal length. So convex lens of focal length 20 cm has less power compared to that having focal length 10 cm
When do convex lens produce real image?
When the object length is less than the focal length
How does focal length of convex lens change if monochromatic red light is used instead of monochromatic blue light?
Blue light travels slower in glass then red and so has a higher index of refraction. That results in a shorter focal length. Search Chromatic aberration in Wikipedia.org, "The World's Encyclopedia"
What happens to focal length when convex lens is cut horizontally?
no change
Why the study was under taken of focal length of a convex lens by graphical method?
to determine the focal length of a convex mirror.
How does a focal length change as a convex lens becomes flatter?
d focal lenght increases due to increases in the distance between centre of curvature and the centre of the convex lens on the principal axis
What will happen to the focal length of a concave mirror or a convex mirror when the incident violet light on them is replaced by red light?
Nothing. The focal length is defined as point where all of the light converges after passing through the lens ( for a convex mirror)and only depends on the mirror's curvature. So changing the incident light ray will cause no change in the focal length of the mirror.
Which lens has a greater power convex lens of focal length 10 cm or a convex lens of focal length 20cm?
Power is inversely related to the focal length. So convex lens of focal length 20 cm has less power compared to that having focal length 10 cm
When do convex lens produce real image?
When the object length is less than the focal length
If a convex lens of focal length f splits into two equal parts what will be the new focal length?
there can be two ways to cut a convex lens into two equal parts-- one, along the principal axis and another, perpendicular to the principal axis. If the lens is cut along the principal axis, then there will bo NO change in the focal length of the lens. But, if it is cut perpendicular to the principal axis, then the focal length will be twice the original one.
What is the power of a convex lens with 10cm focal length?
1.0 diopters
What happens to the focal length of convex lens when convex lens is cutted vertically along the optic center?
its focal lenght becomes 2f
What is the focal length of the convex lens?
The distance from the centre of the lens to the focal point.
What is focal length of a door peephole's lens and is it concave or convex?
The lens in a door peephole is a convex lens with a very short focal length, giving it a wide field of view. If it were on a camera, it would be called a "Fisheye lens".
