Question Answers

Consider an equiconvex lens of radius of curvature R and focal length f. If f > R, the refractive index mu of the material of the lens Consider an equiconvex lens of radius of curvature R and focal length f. If f > R the refractive index mu of the material of the lens October [...]

6. Take the data giving the minimum and the maximum temperature of various cities given in the beginning of this Chapter (Table 3.1). Plot a double bar graph using the data and answer the following: (i) Which city has the largest difference in the minimum and maximum temperature on the given date? -12 14 16 [...]

What should be the value of distance d so that final image is formed on the object itself. (Focal lengths of the lenses are written on the lenses.) What should be the value of distance d so that final image is formed on the object itself. (Focal lengths of the lenses are written on the [...]

Behind a thin converging lens having both the surfaces of the same radius 10 cm, a plane mirror has been placed. The image of an object at a distance of 40 cm from the lens is a plane mirror has been placed. The image of an object at a distance of 40 cm from the [...]

A thin equiconvex lens (mu = 3/2) of focal length 10 cm is cut and separated and a material of refractive index 3 is filled between them. What is the focal length of the combination? A thin equiconvex lens (mu = 3/2) of focal length 10 cm is cut and separated and a material of [...]

You are given two identical plano-convex lens. When you place an object 20 cm to the left of a single plano-convex lens, the image appears 40 cm to the right of the lens. You then arrange the image appears 40 cm to the right of the lens. You then arrange You are given two identical [...]

The magnifying power of an astronomical telescope is 5. When it is set for normal adjustment, the distance between the two lenses is 24 cm. Calculate the focal length of its eyepiece and that of its the distance between the two lenses is 24 cm. Calculate the focal length of its eyepiece and that of [...]

The total magnification produced by a compound microscope is 20, while that produced by the eye-piece alone is 5. When the microscope is focused on a certain object, the distance the distance The total magnification produced by a compound microscope is 20 while that produced by the eye-piece alone is 5. When the microscope is [...]

The focal lengths of the objective and eye-piece of a compound microscope are 4 cm and 6 cm respectively. If an object is placed at a distance of 6 cm from the objective, find the distance find the distance The focal lengths of the objective and eye-piece of a compound microscope are 4 cm and [...]

The magnifying power of an astronomical telescope in the normal adjustment position is 100. The distance between the objective and eye-piece is 101 cm. Calculate the focal lengths The magnifying power of an astronomical telescope in the normal adjustment position is 100. The distance between the objective and eye-piece is 101 cm. Calculate the focal [...]