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What happens to the focal length of convex lens when convex lens is cutted vertically along the optic center?
its focal lenght becomes 2f
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.
Do convex lenses have negative focal length?
No, convex lenses have positive focal lengths. The focal length is the distance from the lens to its focal point where light rays converge. In convex lenses, parallel light rays are focused to a point on the opposite side of the lens, resulting in a positive focal length.
What is the focal length of the convex lens?
The distance from the centre of the lens to the focal point.
Why focal length of convex lens is easier to find than a concave lense?
The focal length of a convex lens is easier to find than a concave lens because for a convex lens, the focal length is positive and is measured from the lens to the focal point. In contrast, for a concave lens, the focal length is negative and the rays of light are diverged. This makes it more challenging to find the focal point accurately.
What is the power of a convex lens with 10cm focal length?
The power of a lens is calculated as the reciprocal of its focal length in meters. Therefore, a convex lens with a 10 cm focal length has a power of +10 diopters.
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
How thickness effects on focal length of convex?
As the thickness of a convex lens increases, the focal length decreases. This is because a thicker lens has a more curved surface, which causes light to converge more quickly. The focal length is the distance at which the light converges, so a thicker lens leads to a shorter focal length.
Will the focal length be greater in a thick or thin convex lens?
The focal length will be greater in a thin convex lens compared to a thick convex lens. Thinner lenses have less curvature, causing light rays to converge more gradually and thus increasing the focal length.
Why is the focal length negative for a convex mirror?
The focal length is negative for a convex mirror because the light rays do not actually converge at a single point in front of the mirror. Instead, they appear to diverge from a virtual focal point behind the mirror.
How do focal length changes as a convex lens becomes flatter?
As a convex lens becomes flatter, its focal length increases. This is because a flatter lens bends light rays less, causing them to converge further away before focusing, resulting in a longer focal length.
What does a convex lens do to an image?
A convex lens converges light rays to a focal point, which creates a real and inverted image if the object is placed beyond the focal length. If the object is placed within the focal length, a virtual and upright image is formed.
