Question

An obiect is placed at 5 cm in front of a lens and an
image is formed 10 cm behind the lens. What type of lens is it​

Answer 1

Answer:

Which of the following is a least selective process of nephron?

A secretion

B. reabsorption

A

C. filtration

D. salt pumping by the loop of Henle

Answer 2

Explanation:

given u=-5cm

v=10

focal length will be

1/f=1/v-1/u

put values of u and v

1/10-(-1/5)=1/10+1/5

3/10=1/f

f=10/3