haym1MoAttevacsp haym1MoAttevacsp

03-07-2016
Physics

contestada

an object is 25 cm away from a convex len.the height of the image is twice the height of the object.find it's focal length.

Respuesta :

olemakpadu olemakpadu

07-07-2016

Object distance = 25cm, u = 25cm

Image = 2 = v/u; v = 2*u = 2*25 = 50cm

By mirror formula:

1/u + 1/v = 1/f

1/25 + 1/50 = 1/f

1/f = 1/25 + 50

1/f = (2 + 1)/50

1/f = 3/50

f = 50/3

f ≈ 16.667 cm

Answer Link

Otras preguntas

use full sentence please and thank you

What is the greatest common factor of 16y^3z^3 and 56y^4z

In terms of leadership behavior, _____ is the degree to which a leader organizes the roles of followers by setting goals, giving directions, setting deadlines,

Neuroeconomic functional mri studies have suggested that rational decision making is associated with the ________, and emotion-driven decision making is associa

which ocean borders the west coast of this United States

Robert sternberg's _____________ identifies three components--intimacy, passion, and commitment--that shift in emphasis as romantic relatonships develop.

What is the value of y in the parallelogram below?

Find each product by first rewriting each mixed number as a fraction 1/9 times 3 9/10

what was the effect of the boston massacre

Blood groups in humans are inherited with the alleles for type a and type b acting in a co-dominant manner, and both a and b are dominant to type o. if two pare