Science, asked by sumankuman, 11 months ago

a convex lens and a concave lens of focal length 50 cm and 40 cm respectively are combined together what is the power of the combination​

Answers

Answered by ARHAMABDULLAH0303
2

Answer:

90 cm

Explanation:

Previous Question
Next Question
Similar questions
Science, 6 months ago
define atmosphere ...​
Chemistry, 6 months ago
how do green patches form on cooper​...
Economy, 6 months ago
3 when was lehele - India programme Estarted, write in details?​
English, 11 months ago
ASSIGNMENT A. Insert 'a' or 'an' where required in the gaps in the following sentences. Put a 'x' mark where no article is required. 1. Sibia did ............ exemplary act by saving the life of a woman. 2. Not many people liked the film, but quite ............ few liked its ............ 3. He can't afford such ............ expensive shirt. 4. I prefer ............ classical music to...
Math, 11 months ago
How can you save by is 22 by 7...
English, 1 year ago
how to write conversations...
Science, 1 year ago
more the use of electric appliance s more will be the pollution-true or false...
Math, 1 year ago
What is the inverse of the function f(x) = 1/2x – 12?