Is V positive in concave mirror? Since as object is always placed to the left side of a mirror, therefore, the object distance (u) is always negative. ... If the image is formed behind a concave mirror, the image distance (v) is positive but if the image is formed in front of the...
The ‘f is negative when the image formed is real and T is positive when the image formed is virtual.Question 17: When parallel beams fall on a convex lens, what happens? Answer: It converges at focus of the convex lens.Question 18: When light passes through optical centre of a convex...
Focal length of a concave mirror is Apositive Bnegative Cdepends on the position of the objects Ddepends on the position of imageSubmit The focal length of the convex lens is A+10 cm B+20cm C−10cm D−20cmSubmit What is the combined focal length of a convex lens of focal ...
where v is the image distance and u is the object distance. Step 2: Consider Two Cases for MagnificationSince the magnification can be positive or negative, we will consider two cases: 1. When the image is real (magnification is negative).2. When the image is virtual (magnification is ...
FIGURE 2. Three thin, positive lenses, showing real and virtual objects and images. (3)h'h≡m=l'l, where m is called the magnification or, sometimes, the transverse magnification; m is negative for a positive lens projecting a real image. It is sometimes convenient to write the object ...
The position of the object is on the place of the question mark. Homework Statement A convex mirror of focal length 10cm forms an image that is one quarter the size of the object. Find the position of the object and the image. Homework Equations -1/f = 1/u + 1/v m = v/u The...
Distances measured perpendicular to and above the principal axis are taken as positive. Distances measured perpendicular to and below the principal axis are taken a negative. Focal length of a convex lens is taken as positive while that of concave lens is taken as negative.For...
ConvexConvexmirrorMirror Replies: 2 Forum:Introductory Physics Homework Help B Variational methods - prove f is convex in R->R Suppose f:R^N -> R is twice differentiable. Prove that f is convex if and only if its Hessian gradiant^2 f(x) is nonnegative. How do I go about proving thi...
For example, if the outputs are probability mass functions, we can take YY to be the probability simplex; if they are sorted vectors, we can take YY to be the monotone cone; or if they are covariance matrices, we can take YY to be the set of symmetric positive semidefinite matrices. ...
Which of the following is true? Lens power is always negative Lens power is always positive The power of the Concave Lens is positive The power of the Convex Lens is positive Ans: (d) The power of Convex Lens is positive Thin Lens Formula for Lens in Contact ...