Science, asked by krao8236, 4 months ago

2) The focal length of a conver lens is 20cm
what is its power?

Answers

Answered by Anonymous

1

Answer:

As we know the formula ,

P =1/f

P = 100/20

P = +5 Diopter

please mark me as a brainlist

Answered by GaneshRM2006

0

Answer:

power of a lens = 1/f

here focal length of the lens = 20cm

power of the lens = 1/20 D

Previous Question

Next Question

Similar questions

Social Sciences, 2 months ago

Which is the most common method of measuring economic development? (i) Profit loss in (iii) Sales (ii) Income (iv) Import- export...

English, 2 months ago

Nicholas nai and the speaker had which type of communication...

Math, 2 months ago

find the derivative of cot^-1 √1-x^2/x...

English, 4 months ago

Define the terms (1) glass (2) Rubber (3) closure (4) contarnes...

Geography, 4 months ago

Northern Plains is formed by the_____________work of three major river systems. a) sedimentary b) depositional ...

Physics, 11 months ago

A charge Q is placed at the centre of the line joining two point charges +q and +q as shown in the figure. The ratio of charges Q and q is...

Physics, 11 months ago

A point charge q is placed at a distance a/2 directly above the centre of a square of side a. The electric flux through the square is...

Physics, 11 months ago

Which of the following statement is correct? The electric field at a point is [NCERT Exemplar] (a) always continuous. (b) continuous if there is a charge at that point. (c) discontinuous only if there is a negative charge at that point. (d) discontinuous if there is a charge at that point.