What is the nature and focal length of 2D lens?

What is the nature and focal length of each lens? Given, two lenses. Since, the focal length is positive, the lens is convex. Negative sign of the focal length implies that the lens is concave.

What is the nature and focal length of a lens if its power is 4D?

The power of the lens is reciprocal of the focal length of the lens. This lens is convex. Hence, The focal length of the convex lens is 25 cm.

What is the nature of a lens whose power is 4D?

What is the nature and focal length of the lens? Since, focal length is positive, the lens is convex in nature.

What is the nature of the lenses having power of 5d and 4D?

the nature of the combination is positive.

What is the nature of this lens?

concave lens is the nature of the lens.

What is the nature of convex lens where power is 2D?

Explanation: Two lenses are given having power of +2D and – 4D. The power of a convex lens is positive while the power of a concave lens is negative. Let v is the image distance.

Is the power of a lens is 2D what is its focal length?

Answer: Power of a lens is -2D, negative sign indicates it is a Concave lens. Focal length (in meters)=1/power of the lens, thus focal length=1/2=0.5m=50cm.

What is the nature of a lens having a power of?

Nature of Lens is Convex. If the value of Focal Length is positive then the Power is Positive which means that Lens is Convex.

What are nature lenses?

A concave lens made up of certain material behaves as a diverging lens when it is placed in a medium of refractive index less than the refractive index of the material of the lens, and behaves as a converging lens when it is placed in a medium of refractive index greater than the refractive index of the material of the …

What is the power and nature of lens whose focal length is 2 Metre?

The given focal length of the concave lens is f = -2 m. It is negative because a concave lens always has a negative focal length. The unit of power is dioptre (D) and 1D = 1m-1.

What is the nature of convex lens?

Hey there ! Nature : Real, inverted and enlarged. Properties of a convex lens: It forms a real image and also converges the light rays passing through the lens.

How many lenses have power +2D and -4D?

Two lenses have power +2D, -4 D respectively. State their nature and focal length of the lens. Hard Open in App Solution Verified by Toppr f=P1​

What is the focal length and its nature if power is +2D?

If the power of lens is +2D, what is the focal length and its nature? You can use the simple formula p = 1/f and find the focal length easily. f =1/2 = +0.5m. Here the +ve sign shows that the lens will show the nature of convex lens as the focal length of convex lens in +ve.

What is the nature and focal length of each lens?

Two lenses have power of (i) + 2D (ii) – 4D. What is the nature and focal length of each lens? Given, two lenses. Since, the focal length is positive, the lens is convex. Negative sign of the focal length implies that the lens is concave.

What is the resultant focal length of a convergent doublet of lenses?

A convergent doublet of separated lenses, corrected for spherical aberration, has resultant focal length of 10 cm. The separation between the two lenses is 2 cm. The focal lengths of the component lenses are: