A lens that is constructed from a glass, whose index of refraction is 3, has a focal length of 22 cm. A second lens of the same dimensions is constructed from another type of glass, whose index of refraction is 5. What is the focal length of the second lens? O 44 cm O 11 cm O 22 cm none of these O 18 cm

Q: Weight of a solid in air is 20 kgf. In water it reduces to 15 kgf. Find the relative density of the…

A: Given:          Weight of solid in air W1 = 20 kgf = 196.133 N         Weight of solid in Water W2 =…

Q: The image of an object 10.0 cm from a lens is located 10.0 cm behind theobject. The focal length of…

A:

Q: An object is placed 5.0 cm in front of a converging lens. Find the focal length of the lens if the…

A: Write the expression for magnification, and solve for v.

Q: In a plano-convex lens, the radius of curvature of convex surface is 10 cm and the focal length of…

A: Given : r1 = 10 cm f = 30 cm

Q: A convergent lens has a focal length of 9.4 cm. The object distance is 20.4 cm. h h' Scale: 10 cm =H…

A: In the question given object distance and focal length we have to find the value of image distance…

Q: The lens - maker’s equation applies to a lens immersed in a liquidif n in the equation is replaced…

A: (a). the lens makers formula for thin lenses in air is

Q: An object is placed 15 cm in front of a converging lens of focal length f = 30 cm. What are the…

A: Given: Focal length of converging lens, f = 30 cm Image distance, u = - 15 cm     To determine…

Q: A 5.00-cm tall light bulb is placed 55.5 cm from a concave mirror having a focal length of 15.2 cm.…

A: Mirror formula :  1 / v + 1 / u = 1 / f  v is image distance u is object distance f is focal length…

Q: An object stands 4 cm in front of a converging lens. If the lens has a focal length of 1 cm, where…

A: solution is given by

Q: A convex lens is constructed such that the radii of the first and second surfaces are 0.12 m and…

A:

Q: Focal length of a lens is 0.2 m, its power and the type lens will be: O a. 50D,Concave lens O b.…

A:

Q: A 1.2-cm-tall object is 71 cm in front of a converging lens that has a 25 cm focal length.Calculate…

A: Given: The height of the object is 1.2 cm. The object distance is 71 cm. The focal length is 25 cm.

Q: A biconcave lens made of fused quartz (n=1.46) has different radius of curvature for each side:…

A:

Q: An object is placed 25 cm in front of a lens of focal length 20 cm. 60 cm past the first lens is a…

A: Given information: Here, f1 and f2 are the focal length of the first and the second lens, u1­ is…

Q: (8) An object of height 2.0 cm is placed 10.0 cm to the left of a converging lens. In back of this…

A: Concept used: Convex lens is the converging lens. Net magnification is product of successive…

Q: An upright object is placed 17 cm in front of a lens. Th is is less than the focal length of the…

A: the magnification of lens is 2.8 which is greater than 1 , so that this must be a converging lens…

Q: A convex lens of focal length 17 cm forms an image of height 6.25 cm at a distance of 17 cm from the…

A: focal length of lens (f) = 17 cm Image distance (i) = - 17 cm image height (H) = 6.25 cm

Q: The distance between the eyepiece and the objective lens in a certain compound microscope is 20.0…

A: Let L be the distance between the objective lens and the eyepiece, f0 be the focal length of the…

Q: A contact lens is made of plastic with an index of refraction of 1.35. The lens has an outer radius…

A: Given Formula to be used to find the focal length of the lens is

Q: A lens is made of a transparent material having an index of refraction of 1.9. One side of the lens…

A:

Q: A convex lens of focal length 13.5 cm forms an image of height 8 cm at a distance of 17.5 cm from…

A:

Q: An object is placed at a distance of 15.0 cm from a diverging lens of focal length 30.0 cm. Which of…

A: Given: The distance of the object from the lens is do=-15 cm. The focal length of the diverging lens…

Q: In a compound microscope the distance between the objective and eyepiece lenses is 23.03 cm. The…

A: The overall magnification(M) of a compound microscope is given as, M =- Lfo×dfe, where L is the…

Q: A concave lens having a focal length of 10 cm in air, is placed in water. Its focal length in water…

A:

Q: A diverging lens has a focal length of 20.0 cm. (i) Locate the image for an object distance of 3.0…

A: Diverging lens means it is  a concave lens at which the  parallel light after passing through it…

Q: A contact lens is made of plastic with an index of refraction of 1.30. The lens has an outer radius…

A:

Q: Find the focal length of a thin lens (n = 1.52) if the radii of curvature are +15.0 cm and -30.0

A: Given: The refractive index is 1.52. The radius of the curvature is +15 cm and -30 cm.

Q: A contact lens is made of plastic with an index of refraction of 1.40. The lens has an outer radius…

A: Given data :- Refractive index n = 1.40  R1 = +1.90 cm (outer radius)R2 = +2.42 cm (inner radius)

Q: The distance between the eyepiece and the objective lens (L) in a certain compound microscope must…

A: Given: The focal length of the eyepiece is fe=3.00 cm. The focal length of the objective is fo=0.5…

Q: The side of a thin lens that faces the object is convex andhas radius of curvature 15.0 cm. The…

A: The given values are, R1=15.0 cmR2=25.0 cmn=1.55

Q: A double-convex thin lens is made of glass with an index of refraction of 1.52. The radii of…

A: Given:glass reflection index, n = 1.52radii of curvature, R1 = 57 cm…

Q: an object is placed 19.0 cm to the left of a lenss of the focal length 12.0cm. 27.0 cm to the right…

A: Given data: The focal length of the lens f=12.0 cm The distance of the object from the left of the…

Q: A spherical mirror of focal length f produces an upward image (h' > O) twice the size of the object.…

A: Given: The image is upward. The object distance is 30 cm. The size of the image is twice the size of…

Q: A camera is equipped with a lens with a focal length of 25 cm. When an object 1.3 m (130 cm) away is…

A:

Q: A contact lens is made of plastic with an index of refraction of 1.40. The lens has an outer radius…

A:

Q: A particular nearsighted patient can’t see objects clearly beyond 15.0 cm from their eye. Determine…

A:

Q: A contact lens is made of plastic with an index of refraction of 1.38. The lens has an outer radius…

A: Given :-  refraction index = 1.38 outer radius R1 = 2.03 cm inner radius R2 = 2.55

Q: The object is located at a distance of 20 cm from the lens, which forms upright image double of the…

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Q: Fill in the blanks. A diverging lens has a focal length of –25 cm. A 5-cm object is placed 35 cm…

A:

Q: A contact lens is made of plastic with an index of refraction of 1.50. The lens has an outer radius…

A: