Let be two vectors, such that a=(3+2j-2k) cm and b=(2î+2j+k) cm, calculate: 1) The angle between the vectors a and b. 2) The direction angles that define the vector b

Q: When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a…

A: If our eye cannot collect much reflected light due to improper positioning of eye piece. It may be…

Q: How can one increase the magnification of a real image created by a single biconvex lens?

A: By convex lens are the combination of two convex lenses in a spherical form, In most cases the two…

Q: Why do you need greater intensity for a low-level image than a high-level one

A: Introduction:- Intensity is the amount of light or energy that is present in an image. It is usually…

Q: (a) A cube of ice with side length of L = 51.0 cm is sitting on a level table. On the table surface…

A:

Q: You cover half of a lens that is forming an image on a screen.Compare what happens when you cover…

A: The correct answer is (c) When we cover half of the lens, we are actually cutting out half the…

Q: If a person covers the top half of camera lens, what effect does this have on the pictures taken?

A: If we cover the half of the lens, then we get a fainter image or an image with less itensity of…

Q: It can be argued that a flat piece of glass, such as in a window, is like a lens with an infinite…

A: The lens equation is given as,

Q: When you look at a fish in a still stream from the bank, thefish appears shallower than it really is…

A: Fish in a tank

Q: How can you see a virtual image, when it's not "really there"?

A: There are two types of images real images and virtual images.   A real image is formed when the…

Q: You hold a shiny tablespoon at arm’s length and look at theback side of the spoon. (a) Is the image…

A:

Q: It can be argued that a flat piece of glass, such as in a window, is like a lens with an infinite…

A: The lens equation is given by 1f=1di+1do Here, f is the focal length,  diis the image distance, d0…

Q: QUESTION 7 *,=x,+v+ 2 x,= 66.6 m "f V= 5.09 m/s t= 9.02 s a = 1.13 m/s2 x,= ? in m Input answer…

A: Part (7): Given: The final position of the object is xf = 66.6 m. The initial velocity is vix = 5.09…

Q: In a two-lens system, if the final image is inverted it MUST be real. true or false?

A: Introduction: To analyze any system with more than one lens, each lens takes an object and creates…

Q: A luminous object 3.0 mm high is placed 20.0 cm from a convex mirror of radius of curvature 20.0 cm.…

A:

Q: It can be argued that a flat piece of glass, such as in a window, is like a lens with an infinite…

A: The expression of lens maker formula is: 1f=1d0+1di Here, f is the focal length of lens, d0 is the…

Q: (11%)  Problem 9:   An object of height 2.5 cm is placed 4.8 cm in front of a converging lens of…

A:

Q: do (cm)  di Magnification, m= 80 ~160 -2 90 ~130 -1.44 100 ~114 -1.14 110 104 -0.945…

A: Magnification for a lens is defined as the ratio of the distance of the image from the lens to the…

Q: Why is an object in water always appear to be at a depth shallower than it actually is?

A: When light ray falls on surface of varying medium, it produces phenomenon such as reflection and…

Q: The optic nerve and the brain invert the image formed on the retina. Why don’t we see everything…

A: Explanation:

Q: rite on a paper. I can't understand handwritten. An object is placed 45 cm from a converging lens…

A: Given:- The object distance from the lens is u = 45 cm  The focal length of the lens is f = 25 cm…

Q: Trucks often have signs on their back ends that say, “If you can’t see my mirrors, I can’t see you.”…

A: Given: signs on the back ends of the truck

Q: By what factor is the image magnified when an object is placed 1.50 focal lengths from a converging…

A:

Q: A person can see well in the distance, but cannot do so at an arm's-length distance. What type of…

A: This condition is Far-sightedness

Q: A 20 cm tall object is placed 40 cm in front of a diverging lens with a focal length of 65 cm. (a)…

A: Given:height of object ho is 20 cm or 0.2 mDistance of object from diverging lens is 40 cm or 0.4…