Science, asked by Subhendu1, 1 year ago

two thin lenses of focal lengths + 20 cm and -15 CM are kept in contact what is the focal length and power of the combination

Answers

Answered by amber3

1

+.2 is the right answer

Previous Question

Next Question

Similar questions

Social Sciences, 7 months ago

Plants and animals cannot adapt themselves to their habitat. It is true or false ...

Chemistry, 7 months ago

Explain with chemical reaction of metal with water (cold+steam+boil) ?

Computer Science, 7 months ago

is it possible to download Sony vegas pro in android...

History, 1 year ago

Tell me All about the Revolt of 1857 chapter...

Biology, 1 year ago

In plant cells, how are cloroplasts and mitochondria related...

Physics, 1 year ago

A resistance of 6 ohm is connected in series with another resistance of 4 ohm. A potential difference of 20 V is applied across the combination. Calculate the current through the circuit and potential difference across 6 ohm distance.

English, 1 year ago

a good speech on school of my dreams for class ninth in about 300 words.

History, 1 year ago

What is Renaissance ? How was it opposed and by whom ?