Question

How can you determine focal length of convex lens experimentally?

Answer 1

Answer:

See steps!

Explanation:

• Move the screen towards or away from the lens until a sharp clear image is seen on it. Measure the image distance (v), between the lens and the screen.

• Substitute the values of u and v in the formula: vuf.

• 111. += and hence determine the focal.

• length (f) of the lens. u.

• v. Ray box.

\==========================================\

Hope My Answer Helps You!

Please mark me as brainliest and follow me also

PLEASE

Keep SmilinG!

Answer 2

$\huge\bold{HEY:)-}$

↪FOLLOW , BRAINLIST ME☺☺PLZZ

✌✌✌✌✌✌✌✌✌

Concave lens:- focal length

Real lab procedure:

in the contact with the concave lens whose focal length is to be determine this forms the combination of the lenses.

  It is placed between the illuminated wire gauge and the screen at fix distance away from the wire gauge.It is taken as Ucm. 

 The position of the screen is adjusted to get clear image on the wire gauge on the screen.

  Measure the distance between the combination of the lenses and screen.It is taken as Vcm.

 Calculate the focal length of the combination by using the given formula

 Repeat the experiment by placing the combination of lenses of different distances away from the wire gauge.